The actors can switch weapons and takeout the ballas just like the player does. It's like a multiplayer where the player have to dodge there's no way to get 10000 health for the player like actors have. It's like feeling like multiplayer style.
They have alot of health so you must download Actor & Bodyguard Spawner to get backups: http://www.gtagarage.com/mods/show.php?id=28222
Enemy Actors
Z + PAGEUP - HECK
Z + PAGEDOWN - Mean Girl
Z + INSERT - Big Smoke
Z + DELETE - Madd Dogg