m4 fix and AA change

Trepidation Playtest

[list] [*] this patch should fix m4. if the reload is still broken you may have to drop that weapon or sell it to a vendor and buy another one. [*] changed anti-aliasing to FXAA. thinking about AMD FSR or something along those lines but not quite sure about it yet. due to the FXAA grass might look a little more choppy but this will provide overall better performance and hopefully get rid of motion ghosting. [/list]