Warning before you start: I do not recommend using any 'cheats' or a modified Coalesced.bin file if you are going to play multiplayer. Most of the results you find when you Google for how to do a tweak or cheat will tell you which ini file and variable to change, but not exactly HOW to do that.
A lot of game tweaks are possible for the PC version of Mass Effect 3, both in terms of graphics and 'cheats', and can be done by editing Coalesced.bin.
