i have my mouse4 button for my last used weapon. I dont use the AWP ever. I hate it. the silencer reload thing on the colt has been fixed. and there are numerous X-hairs out there that let you see the whole screen while zoomed with an AWP. all of the black area is gone and its just the regular screen. anyway i also agree with fatty, its not feasible for the gun to rechamber a bullet while switching, but it is a game and thats all that it ever will be however realistic it is or isn't.