Unlockable weapons:Unlock the following weapons by completing the game on the corresponding difficulties:WEAPONS – HOW TO UNLOCKPrimary weapons – Complete the game on recruit difficulty.Secondary weapons – Complete the game on contractor difficulty.Basic weapons – Complete the game on professional difficulty.All Other weapons – Complete the game on operative difficulty.Professional difficulty:To unlock Professional difficulty, complete the game on Recruit or Contractor difficulty.Surviving a fall:To survive a big fall, press Y to roll and you will not get hurt.Easy money in China mission:You can earn easy money in the China mission by completing the first objective for $30,000. Then, quit and reload the mission for another $30,000. You may have to walk back down the mountain to get the money. Repeat as desired.Switch characters anytime in campaign mode:To switch characters anytime in Campaign mode, at the campaign menu, select “Start New Campaign”. Select a character, go back to the campaign menu, and select “Continue Campaign” to start with the character you selected.Intel briefcase locations:You will get money for picking up the briefcases. Each briefcase can only be collected once. Pause the game and select the “Objective” option to check how many briefcases you have collected for the current level.AfghanistanBehind the first M-11 missile is a small path going uphill. Follow it to find the briefcase.Kill the first heavy armor guard you encounter. After the intermission sequence, search the nearby platform area. The briefcase is on top of a short set of stairs at the back end of the platform. Next to Brian Hick