Mercenaries 2: World in Flames Q&A

Hi... I've got a problem with the cheats for mercenary 2. Now I know what the PDA screen
is. Is it the map? When the map (the PDA) is open, and I try to press: LB 2x RB, LB, RB
2x, LB 3x RB, LB there happens nothing. I don't know how this works. Please help me...

well i'm trying to put in some cheats for mercenaries 2: world in flames and i for got what the pda screen was do u thik that u can help me please?

pc game The tank inside the compound. I hit e and then f but what key after that?
Tim

ghe