This is a list of weapons from the concept thread GTA: Liberty City Prologue, along with descriptions of the modifications that can be added to some of the weapons.
List of weaponsEdit
Machine Pistols and sub-machine gunsEdit
Thompson sub-machine gun
M2 Browning Machine Gun (stationary only)
MG 42 (used once in-game)
Browning Automatic Rifle
Bren machine gun
M79 Grenade Launcher
Misc. Items (trash and debris)
A variety of weapons can be modified, most of them with scopes. Almost every weapon can be silenced, which doesn't count as a modification. The player always has a silencer in his inventory, even if he was busted or wasted. Silencers are only available when a weapon suitable for having a silencer on it is equipped.
Both handguns (pistol and .357 magnum) can be modified. The Magnum can be modified with a scope, which increases accuracy, but slows down the player substantially when seeing through the scope versus aiming normally with the Magnum. It also slows down the rate of fire, but only slightly, by 0.35 seconds.
The list of weapons that can be modified, not including silencers, is here:
Double-barrel shotgun (can only be turned into a sawed-off shotgun)