I think I follow you.
In the game, the weapons are awesome against basic walkers, especially in large groups but only after you fully upgrade them (by eating dudes who know how to use them).
They don't do shit against Hunters.
What did I use in the game? I don't remember.
Wait, the game the recording or the actual game "Prototype"?
In the AP the players use submachine guns (I don't remember the specific gun, though one of the players who wasn't Tom or Cody mentioned it) and pistols (Dester Eagles and 9mms because you wouldn't let Tom have a .45 (a wise choice I felt)) to blow the shit out of Walkers when they hit a hot zone because walkers are basically running zombies. But when they try to attack a wounded Hunter they unload the entire clip of an M4 into it's head, throw a flame grenade on it, and then still nearly get killed by it before getting away. Then they decided to get more guns.
In the video game, Hunter didn't fuck around. It takes like three or four missles from the shoulder launchers to kill
one of them, depending on the difficulty mode. They make for a pretty good CoC enemy.
I find it funny how after the failed effort to even hurt the Hunter, Cody just sort of gave up trying to keep playing it as an investigation game because it was clear half the party just wasn't going to play that way. He started trying to acquire mental disorders, get the two guys into situations where they'd die, and repeatedly refers to their characters as meat shields.