The Last Stand 2 - Weapons
P istol - The starting pistol isn't that great, but it's slightly better than the starting pistol of your survivors. Give it to them as soon as you upgrade.
.357 Revolver - A great weapon for the early levels, you can gfind it in Glendale. Just aim for the head and you should get one shot kills. The low ammo capacity and fairly long reloading time is a bit of a weakness though, and makes it obsolete for later levels. It's quite useful in a survivor's hands though, so pass it on.
Chainsaw - You get this in Glendale, but you'll use it as your backup until the end of the game. You can quickly mow down any zombies on the barricade. If you're overwhelemed, just switch to the chainsaw and use it to clear the barricade. It's sometimes a good option to just do chainsaw duty while your survivors cut down the bulk of the horde. Note that it does have to be "reloaded" after a fair bit of use. It's a fairly long animation too, so try to reload during a brief break.
Shotgun - You get this in Whistler's Grove and I found it useful for the rest of the game. It's great for hitting multiple zombies and it can usually take their heads off if you aim a little high. It has eight shots and the reloading animation can be interrupted at any point to start firing again. It's ideal for defending the barricade. Just watch your ammo and reload often.
Compound Bow - You also get this in Whistler's Grove and it's also great. It's accurate and can usually kill with just a few body shots or a headshot. It also fires fairly fast. It's basically a .357 that you never have to reload. I suggest that you settle in with either the Compound Bow or the Shotgun for most of the game. Note that survivors can't use the bow, so you may want to use the bow and lend the shotgun to someone else.
UMP 45 - A light machine gun you can get in Claysburg. It's not really suited for killing zombies, but it's useful in a survivor's hands.
Uzi - Like it's partner in crime, it's found in Claysburg and only really good as a survivor's weapon.
Sawn-Off Shotgun - Found in Aspenwood. Not as good as the shotgun in my opinion.
Hunting Rifle - Found in Aspenwood. Effective for snipers but too slow in my opinion. Give it to a survivor.
AK-47 and M4A1 - Both found in Jonestown and basically the same. Not really effective against a horde. Just hand it off.
Hand Grenades - Found in Jonestown. Worthless.
RPG and M249 - These are found at Fort Tran and let you become a zombie killing god. Just have fun holding the base until you get tired of it.