not a bad idea
personaly i have 2 rifle slots (one has the G3 and the M14, both with red dots, the other has the AK-47 and the M16 carbine) a sniper slot (.50 cal barrett and golden D-egale) a shot gun slot (the semi-auto shotgun and an uzi) and a light machine gun slot (M60 with grip and an RPD) it's really all about experimenting with what guns work for you with what perks like with my sniper slot i have the UAV jammer so no one can see me on the radar (unless i shot) my friend only uses the Scorpion and he owns everbody with it, another friend runs around with the .50 cal barrett and does fairly well, i did my slots so i can be prepaird for anything, the shotgun slot for maps that are close combat and the sniper slot for wide open spaces, the rifle slot with the semi-auto rifles for when accuracy counts or the full auto rifles when i need the fire power and the light machine gun slot for when i need to guard something, just experament and use common sense when picking your perks....last but not least don't let anyone tell you what weapons or perks you can and can't use, if it works for you use it if not then don't, use the mayterdom perk if you like to use it, use the grenade launcher if you can use i well, don't let anyone hold you back!