Sometimes "cheating" is just fixing broken things the devs make really dumb decisions about. In RA2, online matchmaking required you to use the smallest resolution possible, which is dumb when you just beat the full game at a normal resolution. In DotA2, you can't zoom out. I just played LoL instead of "cheating" though (a.k.a. making the game playable). In Dawn of War I used a zoom out mod once but honestly the game already let you zoom out reasonably enough anyways. But these weren't for getting an unfair advantage, this was for solving claustrophobia and not-having-the-camera-right-in-the-dirt.