Viper (LW2)
The Viper is the true face of the thin man from the invasion. Mobile and evasive, they serve as difficult to pin down skirmishers and are a common sight in the early-mid game. Early on they typically can be seen leading ADVENT pods, while later on they travel in full snake-packs, until they finally serve as auxiliaries for more dangerous aliens as the force level rises.
Long War 2 vipers have about the same combat strength, and are about as common as in vanilla.
Vipers are FAR more likely to use Poison Spit in Long War 2 if presented with grouped up targets or lacking a good shot.
A major change is that a Bound victim is now a valid target for the Viper's allies to shoot at. When facing several enemies, you may want to ensure the Vipers are disoriented, else a successful Tongue Pull early in the alien turn can result in the grabbed soldier being gunned down by easy shots from the Viper's allies before you have a chance to react.
| Ability | Rank Required |
|---|---|
 Tongue Pull Grab a target with your tongue and pull them to melee range. Only humanoid targets can be pulled. |
Viper (Mk1) |
 Bind and Crush Bind and crush an adjacent humanoid enemy. Allied units can fire upon the immobilized target. |
Viper (Mk1) |
 Poison Spit Spit deadly poison at an area. |
Viper (Mk1) |
 Reaction fire shots against you have a significantly decreased chance to hit. The bonus goes down with each additional reaction shot you face. |
Viper Elite (Mk3) |
- Tongue Pull, Bind, and Poison Spit are all single action skills, Vipers will always follow up a successful pull with a bind and can follow up a failed pull with another skill.
- Vipers will still poison spit at immune targets.
| Ability | Effected Ranks | Chance to Adopt While Active |
|---|---|---|
 |
All ranks | 16% |
 |
All ranks | 50% |
 |
All ranks | 33% |
 |
All ranks | 8% |
 |
All ranks | 15% |