Classes (EU2012)

Soldiers in Enemy Unknown 2012 are divided into Classes, where each class has specialized stats and weapons, whilst also possessing unique abilities (a.k.a. 'perks'). When a Rookie is first promoted it will be assigned randomly to one class and be given its initial ability. As the soldier level up more, the player gets to choose one of two abilities at each level, with the exception of Major where only one perk is available.

The system of soldier Classes follows a 'Rock, Paper, Scissor' logic, where the different classes complement one another on the battlefield and provide unique abilities to each squad. Each class is focused for a specific role(s) and they are crucial to design squads with the right combination of abilities required for each mission, terrain, type of hostile presence and other factors.

There are five classes of XCOM soldiers present in the game:

• Assault
• Heavy
• Sniper
• Support
• Psionic (subclass)

Assault

A mobile soldier with a short-range high punch and good defense. A good choice for close quarter combat in maps with constricting spaces and limited vision. The Run & Gun ability make Assault soldiers particularly useful for outflanking your opponent. Its main drawbacks is the limited usefulness of the Shotgun outside close range and the high cool down time after using Dash and Fire.

• The Assault class primary weapon is the Shotgun, a firearm designed to deal heavy damage to targets at close range with a 20% probability for critical hits, but with loss of efficiency at a greater distance to target.
• The Shotgun can later be replaced by the Laser Scatter and Alloy Cannon models, which offer greater damage capability.
• As an alternative, Assault Rifles may also be used by Assault units instead of Shotguns. It provides them with a better weapon for medium range engagements, where it can use the perks that improve its Critical Hit ability for devastating effects.
• Finally the Assault may also carry 1 Pistol as its secondary weapon and other equipment as required.

Assault Ability/Rank Tree

Ability	Rank	Actions	Attack	Defense	Notes
Run & Gun	Squaddie	Unit can Dash + Fire			Allows to Dash and Fire, but not Dash and use equipment; 3 turn cooldown
Aggression	Corporal		+30 (max) Critical Chance		+10 points per enemy in sight
Tactical Sense	Corporal			+20 (max) Defense	5 extra Defense points per enemy in sight
Close & Personal	Sergeant		+30 (max) Critical Chance		Against adjacent targets; bonus declines with distance
Lightning Reflexes	Sergeant			Forces reaction miss	1st shot fired at this unit on Overwatch is a miss
Flush	Lieutenant		Flushes enemy from cover		Easy shot but low Damage to target
Rapid Fire	Lieutenant	Can fire 2 shots			-15 Aim penalty on each shot
Bring 'Em On	Captain		+5 (max) Critical Damage		+1 per each enemy spotted by the XCOM squad, maximum of 5
Close Combat Specialist	Captain	Always on Overwatch			Will only fire at enemies moving within 4 tiles or less distance
Will to Survive	Major			Reduces damage	Reduces Damage taken if not exposed or flanked
Killer Instinct	Colonel		+??? on Critical Damage
Resilience	Colonel			No Critical Hits	Unit is immune to Critical Hits

• The Assault's abilities tree choices are between improving its 1st and 2nd Actions, and increasing its Attack (Critical Hit and Damage chances) and Defense capabilities.
• Assault is the only class that can gain the Flush ability, allowing it to force enemies into the open and out of cover.
• The bonus in stats gained through rank promotions will give the Assault a total of +24 Aim points upon reaching Colonel rank, together with a total of +4 HP and +14 Will.

Additional Notes

• Home Run / Blitzkrieg: Focuses on big damage. For example, combining high crit perks like Aggression and Close & Personal would suit a combat style involving multiple Assault units moving fast and aggressively using Run & Gun continuously. A Sniper with Squad Sight could be a good supporting unit for this style to facilitate taking out enemy units that you miss or extra units you encounter along the way, but also may not work well in limited-sight close-quarters maps. In those cases, take care to Run & Gun into cover against potential remaining units or have Support units with smoke grenades ready to help after Assault units have moved & fired. This Assault soldier may be particularly useful in time-sensitive missions like Terror Missions and Bomb Disposals.

Heavy

Firepower and damage specialist, carrying both a Light Machinegun and a Rocket Launcher. They are essential to support squad attacks, engage enemies on their own or the demolition of terrain obstacles. Its main disadvantages are the low progression on Aiming and the limited ammunition (1 round) for the launcher.

• The LMG is the Heavy's main weapon, capable of dealing heavy damage to targets and also to suppress them, if the Heavy has that ability. As research on laser and plasma weapons progresses the Heavy will later be able to upgrade its primary weapon to Heavy Laser or Heavy Plasma advanced models.
• The Rocket Launcher is the secondary weapon for the Heavy and it gives him 1 rocket shot, to use against groups or enemies or to take down terrain. The launcher can be further upgraded with the Shredder rocket ability, which gives an extra, special rocket; and the Rocketeer perk, which allows for further rockets to be brought to a mission.
• Frag Grenades will be essential for Heavies with the Grenadier ability during combat missions.

Heavy Ability/Rank Tree

Ability	Rank	Actions	Attack	Defense	Notes
Fire Rocket	Squaddie		1 rocket per mission		Requires both Actions to fire
Bullet Swarm	Corporal	Fire/Fire Fire/Move			Unit can now fire twice or fire before moving on the same turn
Holo-Targeting	Corporal		+10 Aim		Bonus also benefits team members that fire at the same alien
Shredder Rocket	Sergeant		+ 33% Damage for 4 turns		Bonus also benefits team members that fire at the same alien; lesser damage (4 points) on initial impact; gives 1 extra rocket - doesn't replace the normal rocket
Suppression	Sergeant	Suppress ability			-30 Aim to enemy, allows reaction shot if the target moves
HEAT Ammo	Lieutenant		+100% Damage robotic enemies		For use against Cyberdiscs and Sectopods
Rapid Reaction	Lieutenant	2 shots on Overwatch			Unit gets another shot if reaction fire hits
Grenadier	Captain		2 grenades		Each item slot can now carry 2 grenades
Danger Zone	Captain		Increase hit area		Increases area of engagement of rockets and suppression by 2 spaces
Extra Conditioning	Major			Health Bonus	Bonus value dependent on armor level
Rocketeer	Colonel		2 rockets		Also gives a 2nd Shredder rocket?
Mayhem	Colonel		Additional damage		Damage from Suppression and area-effect weapons is increased based on tech level

• The Heavy's choice of rank abilites are focused on improving its Actions, either by allowing it to Fire twice, use Suppress fire or improve its Overwatch ability, or to upgrade its firepower and Damage capability.
• There are two abilities, Holo-Targeting and Shredder rocket that are designed for other squad members to take advantage of them, allowing the Heavy to act as a squad multiplier.
• Heavies are the class that will receive lesser rank bonuses in stats upon promotion, specially in Aim (+10 Aim points total upon reaching Colonel), receiving also a total of 4 HPs and 14 Will points.

Additional Notes

• Heavy Ordinance: Focuses on high, AoE damage. Suggested perks include Shredder Rocket and Grenadier/Danger Zone. This build would be good for encounters with high volumes of aliens or in slow, time insensitive missions where you can take the time to not take your first movement for rocket shots. This build could be particularly effective combined with Squad Sight Snipers in a combined effort to destroy cover and then take out remaining damaged units with the Snipers.
• Heavy Buffer (needs a better name): Focuses on perks that improve the rest of your squad like Holo-Targeting, Suppression, and Rapid Reaction. Combined with Rifle Suppression Support units, the player can pin down the enemy and freely move around Run & Gun Assault units to systematically eliminate the enemy. This would be good for scenarios that are not time sensitive so you establish position and plan out movements to minimize Overwatch consequences.

Sniper

The sniper's main role is to inflict long-range critical damage on enemy units by using its Headshot ability but it can be also used for reconnaissance duties. Its main drawbacks is the starting inability to Move and Fire its Sniper Rifle on the same turn, forcing it to use pistols on close quarters fights unless it receives advanced training and the cool down time for its main weapon.

• The Sniper's primary weapon is the Sniper Rifle. This weapon offers high damage and a +20 Critical Chance to any shot, with the critical hit chance increasing on each tech upgrade, from Laser Sniper Rifle to Plasma Sniper Rifle.
• Sniper Rifles are also the only starting weapon that can fire at hostiles outside the units' view, using the Squad Sight Sniper ability. Their drawback is their starting restriction on Move and Fire, which can only be removed with the Snap Shot ability.
• Snipers may also be trained to use their Pistols for greater damage (+2 points) with the Gunslinger ability.

Sniper Ability/Rank Tree

Ability	Rank	Actions	Attack	Defense	Notes
Headshot	Squaddie		+ 30% Critical Chance		Extra Critical Damage; 2 turn cool down
Squad Sight	Corporal		Can fire on any sighted enemy		Sniper can target any hostiles seen by the squad; requires clear line of fire
Snap Shot	Corporal	Unit can Move/Fire			-20 Aim penalty
Damn Good Ground	Sergeant		+10 Aim	+10 Defense	Aim bonus given in addition to existing one for height
Gunslinger	Sergeant		+2 damage to pistols
Disabling Shot	Lieutenant		Shot to disable a target's weapon		If successful target may try to repair using reload; no critical hits; ??? turn cool down
Battle Scanner	Lieutenant		+ Vision	+ Vision	Unit can deploy a scanner that creates a source of vision for 2 turns; can be used twice
Opportunist	Captain		No Aim penalty on overwatch		In addition, reaction fire can now cause Critical Hits
Executioner	Captain		+10 Aim on injured targets		With targets at less that 50% health
Low Profile	Major			Partial cover counts as full
Double Tap	Colonel	Unit can Fire/Fire			2 turn cool down
In The Zone	Colonel	Extra Action after a kill			Kills made against flanked or exposed enemies with the sniper rifle don't cost an action

• Sniper perks focus on increasing its overall Attack abilities (Aim, Critical chance, Damage), but there's also a couple of perks both to improve both its Actions and its defense stats.
• If equipped with the Battle Scanner Snipers may also scout for hostiles without the need to send (and risk) a squad member.
• Snipers can also train on their unique Disabling Shot perk, allowing them to temporarily disable an alien's weapon.
• Rank promotions will give Snipers the biggest increase in Aim when compared to the other classes (+40 points total). Their drawback is that upon reaching Colonel rank a Sniper will also receive less 1 Health Point than any of the other classes (+3 total) but the same Will (+14 total).

Additional Notes

• Equipping the Sniper with armor that has a grappling hook is particularly helpful to establish a safe shooting position with wide field coverage and to use the Squad Sight and Damn Good Ground perks.

Support

Multipropose units intended to either stay behind the front lines in order to heal damaged units, provide cover for forward units. Supports can also be used in combat, push the offensive by helping to outflank opponents, if Assaults are pinned down or have been lost, or to provide overwatch. Its main drawbacks are the lower damage from its primary weapon when compared with the other classes's main weapons and its lack of offensive (damage) abilities.

• The Support's primary weapon is its Assault Rifle, which can also be used to Suppress enemies, if the Support acquires the Rifle Suppression ability. The main weapon can later be upgraded to Laser Rifle, Plasma Light Rifle or Plasma Rifle variants.
• The Support also carries Smoke Grenades which can generate clouds capable of offering half cover to any units inside them (both XCOM and the aliens) or even increase the stats of the soldiers inside the cloud.
• The Medikit is also essential to a Support, due to its abilities which allow it to serve as a specialized Field Medic.

Support Ability/Rank Tree

Ability	Rank	Actions	Attack	Defense	Notes
Smoke Grenade	Squaddie			1 smoke grenade +20 Defense	Allows unit to carry 1 smoke grenade - smoke cloud gives half cover (+20 Defense) to all units inside it; cloud lasts for 2 turns
Sprinter	Corporal	3 extra tiles Movement
Covering Fire	Corporal	Overwatch on enemy attacks			Reaction fire can now be triggered by enemy fire, in addition to movement
Smoke and Mirrors	Sergeant			2 smoke grenades	Each equipment item slot can now carry 2 smoke grenades
Field Medic	Sergeant			3 use Medikit	Unit can use each Medikit 3 times
Revive	Lieutenant			Improved unit heal	Medikits can revive critically injured soldiers at 33% of Health instead of just stabilizing them
Rifle Suppression	Lieutenant	Unit can Surpress			-30 penalty Aim to target; will fire a reaction shot if target moves
Combat Drugs	Captain		+??? Critical Chance +??? Will
Dense Smoke	Captain			Larger area +20 Defense
Deep Pockets	Major				1 more item slot
Savior	Colonel			Improved unit heal	Medikits restore ??? more Health per use
Sentinel	Colonel	2 shots on Overwatch			Unit will reaction fire twice

• Support abilities are centered on improving its basic Actions and its Defense capabilities, with zero abilities to develop the Support's offensive skills.
• The two main Defense areas for Support to specialize are Medikit use and to use Smoke Grenades to create Cover and to enhance the squad's stats.
• Support can have 2 other specialized abilities: Suppress (which Heavy also shares) and Covering Fire (making it the only class that can react to enemy fire on Overwatch).
• The bonus in stats gained through rank promotions will give the Support a total of +24 Aim points upon reaching Colonel rank, together with a total of +4 HP and +14 Will.

Additional Notes

Psionic

A Psionic is a late game class that appears once you tested your soldiers for psionic ability. They can use their mental powers on the battlefield to panic/control enemy units or to create physical attacks.

Psionic Ability/Rank Tree

Ability	Rank	Actions	Attack	Defense	Notes
Mind Merge	Trainee?
Mindfray	Operative?
Telekinetic Field	Operative?
Psi Inspiration	Specialist?
Psi Panic	Specialist?
Mind Control	Volunteer?
Rift	Volunteer?

Additional Notes

See Also

• Abilities - For a list of all abilities and ingame descriptions
• Ranks - For detailed information on promotion skill bonuses
• Gameplay Mechanics - Explanation of the Action system
• Equipment - list of all XCOM weapons and equipment
• Squads
• Squad Design