Alien Inventory Use

Well I've searched all over but I can't find which page (if any) specifically discusses the Alien AI and how it handles inventory. There are fragments of comments but no central source. So let me put down some observations.

Normal Things Alien AI Cannot Do

• Pick up anything
• Use any melee weapon (eg Stun with a Stun Rod, attack with a Vibroblade)
• Prime/use Smoke Grenade. (The Proxy may fall into this category as well).
• Use Mind Probe.
• Use Motion Scanner/Medi-Kit.

Normal Things Alien AI Can Do Normally

• Reload its weapon if empty (but possibly by cheating)
• Switch to another loaded weapon or grenade, if it has no more clips (but again, possibly by cheating)
• Fire loaded human weapons placed on any inventory slot - first moving them into a hand.
  • Observed: Laser Pistol, Laser Rifle, Heavy Cannon, Rocket Launcher - probably all.
• Load unloaded human weapons, provided it has suitable ammo in some inventory slot.
  • Observed: Heavy Cannon, Rocket Launcher
• Prime and throw human grenades. (Observed from hand only, but probably from anywhere in inventory.)
• Use items that are placed in regular inventory slots, not its "magic pocket" (see next section".

Things The Alien AI Does Abnormally

• Ignores Inventory Placement rules, by initially stacking all its items in a "magic pocket" on its right leg. And using them from that location (not in the hand).
• Consequently, the weapon currently in use by the Alien is not shown on its battlescape graphic (?)
• Fires weapons using clips that are in its possession, but which (initially at least) are not loaded into the weapon, but are in its "magic pocket".

Alien AI Abilities To Be Determined

• Autofire human weapons (think I've seen this: confirm)
• Does Encumbrance apply?
• Are TUs expended when reloading? (probably)
• Unloading a weapon
• Selecting to use,from inventory, a different (eg more powerful) weapon than what is currently held. (Alien AI does this when mind controlling humans. What are the rules?)
• Changing ammo type on a weapon (eg to a more powerful type)
• If so, what happens to partly spent clips if changed?
• Throw an HE Pack - very likely
• Set an HE Pack (on the ground) - unlikely
• Use a flare or smoke grenade - unlikely
• Use a Mind Probe, Psi-Amp, Motion Scanner or Med-Kit - highly unlikely.
• Walk up a Skyranger ramp?
• Drop anything voluntarily (eg not when panicking)