[MetalMilitia]

You can probably get away with a control pad in games like HALO and CoD4 but when you need access to more than about 6 functions you're screwed. For example in Battlefield you need stuff like the squad command menu, the squad communications menu, the general communications menu, all the weapon keys, sprint, switch kit, change fire mode, the list goes on. On a PC you can just bind them straight to the keyboard and mouse however you want. If you were to try and map them all to a controller it'd take about 30 seconds each time you wanted to switch to a different fire mode.

Which is all really irrelevant because the analogue sticks are to slow to aim with. :/