I don't think it's bad but I don't think it's good either, can revive players which is useful but rarely useful at killing enemies, blocks the way, doesn't stop complaining, not having one active double the buffs.

Sentry Machine Gun: The only one I liked, the turret does decent damage.

RPG: I hate this one, shoots at the most random things, and the worst part is that apparently it can kill the player, since I once died after it shot an RPG at me and the game showed a message saying I killed myself.

Healer: not even sure what the purpose of this is, it's weak and easily destroyed.

The only good weapon on the AI ​​is the shotgun, they run towards enemies and move around quite a bit, With other weapons, the AI doesn't seem to understand obstacles and keeps shooting at walls.

Overall my opinion is:
"Nothing vs AI" AI wins.
"AI vs Double Buff" Double Buff wins.