Alright, lemme explain some things barney style so most of you guys can understand.
If you wanna succeed on coop follow these steps, they're dummyproof:


Why?
They're not 100% useless, smokes can cover you for a couple of seconds from helicopters (Around 10 seconds or less). You have a better chance of surviving by hiding inside a building than using them.
Flashbangs on the other hand are 100% useless, don't even bother.


Why?
One for area denial and the other one for blowing up caches.


Why?
They don't do much, equip a foregrip instead, they reduce your recoil greatly.
Only use compensators if you're a gunner, mainly because there's no other option.


Why?
One bad nade/molotov/rpg and y'all are gone.


Why?
Bots will go psycho mode and will increase their accuracy, that means the guy in front of you will die instantly, No time for him to react.


If a teammate throws a molotov at a door/halfway don't be a d*ck, stay away from the fire, damage reflection will get your teammate killed.


But for the love of Christ, when sh*t hits the fan pick a door and fricking defend it, don't move from there. You're potentially obstructing a teammate's line of sight and could get both of you killed.


If you have to defend, molotov every door you find, it'll slow down the enemy's assault.


We all know Technicals are a pain in the butt to deal with. Technicals usually have 2 predetermined paths, if possible place a mine on one road, and cover the other with your rocket launcher of choice.






Bots hide inside buildings and you're wasting everybody's time.


First call the gunship, and then the minigun.
Why?
Dude trust me.


Save those points for an extra molotov, a better handgun or more attachments for your primary.


It can really save your life.


Equip flechette rounds, slugs are completely useless (the default shells work just fine and various ranges too)


Bots will ignore you after that and will look for another target.


Well, ak platforms are your best choice.
Why?
Most of your team and the enemy will have a couple of them, you can get some ammo from their corpses. The X1.5 scope is your best choice, it works great at both close quarters and long range.


Just don't. Tap fire on full auto instead, if an enemy flanks you, we both know you're gonna panic and miss your shots.


Aim downsights darnit, it's not impossible to get kills but practice a lot first. If possible, only use it when the enemy is really, really close (arms length).



Bots love to throw molotovs there, and will get you 80% of the time.


Remember i told you to pick a door and defend it? Well, don't move from there, watch your teammate's back from your position, in case he's reloading or missed a target.


Don't equip acogs and other high magnification optics on LMG's, you probably won't be able to handle the recoil.


Either using your mic or holding [C] by default and selecting the ''Enemy spotted'' command.


Hold [C] and select the ''Intimidate;; command, bots will react to these voice lines and respond (Usually in funny ways) doing this will make the bots reveal their position by voice giving you a chance to predict their route.


That pretty much sums it up, feel free to contribute to this guide.
And remember: DON'T FRICKING USE SMOKE!!!
You can't see the bots, but oh baby, they sure as heck can see you (That includes those pesky Technicals)

M9 currently is the best pistol (I hate to admit doe, I love some .45 stopping powah I tell you hwhat)

God tier rifles: AKM, FAL
Good tier: G3, AK 74, M14 EBR
Ok tier: M16A4, M4 (Because M4's too expensive) Mk17, Mk18)
Meh but cool tier: ''AK Alpha'', G36, M16A2.