If I map a key to something else, CLEAR IT FROM WHERE IT WAS BEFORE. Like, y'know, every other game out there does? Is that so hard? Christ.
Have you not played BF1942 or BFV?
There are different control schemes for Infantry, Land vehicles and Air vehicles. It is a necessity to be able to bind multiple controls to one button.
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Zero Tolerance Games Counter-Strike: Source server.
http://www.ztgames.com