Tripple+ Weapon Glitch!
This is a very simple thing to do, what you do is make sure you have a grenade left over or a few of them. go to a weapon on the wall on open a box and when you claim your weapon or buy it, make sure you hold RB and X at the same time, this will buy the weapon and you will have three weapons, this can keep going on.
Pack-A-Punch
You do NOT need to hold a grenade to clam somthing from the Pack-A-Punch, all you have to do is just reclaim it, don't worry
NOT PATCHED
WARNING
This does NOT work for the HOST of the game, so get someone stupid to host for you and or your friends or go online and hope for the best ok?