Right after the intro ends and you gain control over the game, immediately go into the menu, enter Options and change the movement setting from "Camera Relative" To "Tank Controls". It works pretty similar like the old Resident Evil games, but eventually you can get used to it. I suggest using the D-Pad rather than the Analog sticks since it is somewhat easier to conrol Manny.
EDIT: As Reillyington86 mentioned, you might be better start a New Game with Tank Controls on, just to make sure the achievement doesn't glitch.