They should make a 'physico ' which runs around screaming, like 2 times faster than a tank, but dose little dmg and jumps far (like a crazier hunter, but with no pounce)
and a Stalker, which crawls on walls and roofs (any wall or roof, not just the hand icons on pipes)
Has anyone read the river notes? lol, it says "Im happy now, i can kill whoever i want" (under it): "physico"
And no crowbar! In game you get no melee wep, only the nice loving kiss of the end of your gun in a zombies face :3
and as for smokers just make it to when they die, they make a really thick green could :P
and for the call horde, you already can, just make a ton of zombie spawn points, block them off, then when they hit the butten, it makes the wall go away for a while :D also make sound-zombie death or something, but make 'togglevent enabled' on the horde caller, so you cant call zombies back.
And teh 'Tyrant'..... lol... nice