The AI is demonstrably better than the player with some things.
Grenades for them are instant explosions IIRC, no throwing involved.
The Incisor has terrible recoil for a player, it's super tricky to tag all three shots. Squaddies don't have recoil.
http://guidesmedia.ign.com/guides/9846/images/slowpoke.gif https://i.imgur.com/M8h2ATe.png
https://i.imgur.com/6ezFwG1.png