Sorry, but i don't know if this is the right site for this, but i cannot enable unlimited ammo during multiplayer. both profiles have beaten the game on veteran and have some weapons purchased with unlimited ammo on singleplayer, but when i go to play multiplayer, only player 1 has it. this is for both coop and mercenaries modes. we have tried it with player 1's profile starting the game and player 2's, with no difference.