M4A1-Fully automatic, all purpose weapon. It has good accuracy. decent damge, decent range, good fire rate for AR, and decent mobility great gun to start out with.

M16A4-3 round burst. It has good accuracy, but it is only 3 shots its damage is also okay and it has good range, i dont really perfer this gun but its 2nd AR to unlock

SCAR-l-Fully automatic, all purpose weapon. Great accuracy, but decent damage, good fire rate and range, it seems that this gun is always good in the CoD franchise dont you think.

CM901-Fully automatic, all purpose weapon. Decent accuaracy and fire rate, its damage is good and so is the range, has an okay fire rate, i havent really given this gun a try couldn't tell you how it is.

Type 95-3 round burst. Just like the M16 but has better damge and fire rate, same mobility, and a little less accuracy, in my view it really doesnt matter with this weapon if you get all 3 bullets on the guy he's done or it has worked for me.

G36C-Fully automatic, all purpose weapon. Decent in all of the gun stats, i havent given this gun a try yet either only a few games and i didnt like it a whole lot.

ACR 6.8-Fully automatic, all purpose weapon. No matter the stats of this gun it is an accuracy beast with good damage i dont know about you but i love this gun another one that is overpowered in the CoD franchise.

MK14-Semi-Automatic [single fire]. Its a single shot of course if you have a quick trigger finger and can handle the gun pretty good it good for you great damage, accuracy, and range, when i used it i liked it it was alright i wouldn't if you dont want to keep pressing the fire button whatever it is on your console.

AK-47-Fully automatic, all purpose weapon. Good damage, decent accuracy and range, and fire rate, when i used it i liked it it kicks back alot so that a problem i always liked the AK-47 though just my opinion.

FAD-Fully automatic, all purpose weapon. Some what decent in all it stats low damge only downfall but quick fire rate evens it out not to bad a nice new gun i liked it when i used it i just didnt like the low damage.

MP5-Fully automatic, close range. Decent damge of course like discription says good for short-close range good for rushing havent really used it so couldnt really tell you.

UMP45-Fully Automatic, close range. Better damage then MP5 when i used this gun i loved it it had a slower fire rate then others but i still like this gun as i did in all the other CoD.

PP90M1-Fully automatic, high fire rate. Ok damage bad accuracy though i liked this gun and it seems other people do to it a love/hate gun i think you either like it or you dont.

P90-Fully automatic, large magazine. Great gun i dont care what the stats say good fire rate and large clip this is my first gold gun recommend to use it after you unlock it.

PM-9-Fully automatic, close range. Fast fire rate quick and fast low accuaracy dont really know about it cause i havent exactly used it a whole lot didnt like it when i did though.

MP&-Fully automatic, close range. Great gun little bit slower fire rate then the PM-9 i thought it had better accuracy then the PM-9 but havent used it a whole lot i've seen people use it like a pro though so id give it a try when you unlock it.

All the Light machine guns (L86 LSW, MG36, PKP PECHENEG, MK46, M60E4) are all Fully automatic, and have large magazines they dont seem to be used to often do to the poor mobility some have decent fire rate, accuracy, and damge, i have yet to use any of them and i didnt feel the need to post about each idividual gun if you want me to i will later.

The sniper rifles are all almost the same but in this game they have 2 bolt action (L118A and the MSR) and there are 4 semi-automatic (single fire) SR (Barrett .50CAL, Dragonov, AS50, RSASS) we all know what snipers are manly used for in the CoD franchise they are all used for trickshots and quickscopes and other things if you dont use them for that reason you are a scrub? best used at long range, all the snipers have good damage and accuracy, some have bad mobility and some dont. I didnt feel the need to post every single SR because no one uses them for what they are put in for. Again i will if you want.

From fully automatic, pump action, semi automatic to lever action shotguns are only good and used for shore range due to the accuracy they have good damage usually a one shot kill not to good fire rate but they are used for short range and nothing else.

Riot shield is bullet resistant. and 2 shot kill or 2 hits accuary dont miss with it protects you from some bullets but it isnt a god mod.

For these two Primary Groups i didnt think i needed to list them idividualy well more for the shotguns we all know what there used for but again i will if you want.

For a secondary i dont really use to much i usually throw a stinger on if im looking to go stealthy or a throw on FMG9 with akimbo first machine pistol but great when you get akimbo it has saved my life so many times for a pistol though i recomend using the 5-7 Five Seven or .44 Magnum both have good accuarcy and decent damge the Desert Eagle has good damage but bad accuaracy in my opinion.

My favorite Lethals are Frags, Semtex for rushing and Bouncing Betty and Claymore for camping frags are cookable and semtex are sticky timed explosives depends what you want to go with and for bouncing bettys there slower since they launch in the air claymores are quicker. Tactical i always go with concussion in my opinion they are better then flash scrambler isnt a smart choice since the enemy will most likely know your around if his Map is blurred Emp grenades good for destroying sentrys and SAM turrets, tactical insertion not to usefull to me as is the trophy sytem dont exactly know what it does, and the portable radar is only good in a certain amount of area.

Recon Pro-Explosive damge paints the target on the mini-map. (pro) bullet damage paints the target on the mini-map.

Sleight of hand-faster reloading (pro) swap weapon faster.

Blind eye-undetectable by air suppory and sentries (pro) launcher lock on-quicker. extra bullet damage versus air support and sentries.

Extrem conditioning-sprint for longer distances (pro) climb obstacles faster .

Scavenger-resupply from dead enemies (pro) extra mags.

Quickdraw-faster aiming (pro) recover from equipment and grenade usuage quicker.

Blast shield-increased explosive resistance (pro) resistance to flash and stun.

Hardline-killstreak requires 1 less kill (pro) 2 assist=1kill towards kill streak deathstreak requires 1 less death.

Assassin-undetectable by UAV, portable radar, thermal, and hearbeat sensors (pro) immune to CUAV and EMP. no red crosshair on name when targeted.

Overkill-carry 2 primary weapons (pro) attachemts on second primary.

Marksman-identify enemy targets at long range (pro) longer held breath.

Stalker-move faster while aiming (pro) delay detection-triggered explosives.

Sitrep-detect enemy explosives and tactical equipment (pro) louder enemy footsteps.

Steady aim-increased hip fire accuracy (pro) weapon is ready faster after sprinting.

dead silence-move quietly. reduce the effects of recon (pro) no falling damage.

Kick, Impact, Attachments, Focus, Breath, Stability, Melee, Range, Speed, Damage.
All weapon proficiencys are to help out your stlye of gameplay. Its most likely whatever you feel comfterble with for EX.Using a P90 with kick and a silencer is more effective then using Attachments and a silencer and rapid fire in my opinion because more shots gives it more kick but with less kick and still the same attachment it still as good maybe even better.