Featured image credit: Infinity Ward
The Bruen MK9 is a light machine gun which was introduced to Call of Duty: Modern Warfare during the Season Three. According to the gun’s in-game description, “this air-cooled open bolt 5.56 light machine gun features a competitive rate of fire and excellent stability that enables you to dominate the mid to long range battlefield”.
The Bruen MK9 is a great all-around gun, as it has recoil which is very easy to control, and it combines heaviness of M13 assault rifle with FAL’s damage performance. The ability to land so many hits on target in such a small time frame makes this gun one of our favorite LMGs in this game.
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However, in order to fully enjoy the power of Bruen MK9, you will first have to unlock it. In order to do that you will have to complete a rather straightforward, but obnoxious quest which might leave you frustrated at times.
To unlock Bruen MK9 you need to kill three players who are near the smoke with an LMG across 15 different matches. What this basically means is that in total, you will have to kill 45 enemies who are NEAR the smoke screen. It is necessary to stress that your targets must be near the smoke cloud, otherwise the game won’t count your kills which will eventually enable you to unlock the gun.

Killing three enemies near the smoke screen in one match isn’t easy, especially if you like to play Ground War or Search and Destroy game modes. In order to quickly unlock the gun, you should follow our advice on how to do that.
Which game modes and maps should I choose?
In order to quickly get those three infamous kills, you should play your matches on very small and tight maps in order to increase your chances of fulfilling quest’s requirements.
The best modes which will increase your chances are:
- Team Deathmatch – pretty obvious. This classical game mode enables you to do just about anything in Call of Duty: Modern Warfare
- Domination – these matches tend to be longer, which is good as it will give you time to get those three kills. Also, you can easily camp near control points and take out enemies near smoke screen as there will always be someone around.
- Kill Confirmed – strategy for this mode is pretty similar to the one for Domination. Just stay near a bunch of floating dog-tags and dispatch enemies as they try to obtain them.
The best maps to play on and quickly unlock Bruen MK9:
Shipment – you may not like it, but this is by far the best map to get three kills near smoke screen in a match. Shipment is such a small map that by throwing single smoke grenade you will basically cover half of the whole map. This will easily enable you to quickly earn those three kills and unlock Bruen MK9. All you have to do here is rinse and repeat.
Shoot House – similar to Shipment. This map will give you some fast-paced action, and if you play the Domination mode on it, you will quickly unlock Bruen MK9 by just repeating stuff over and over again.
Aisle 9 – this super small map gives you great chances to kill your enemies while hiding in the smoke cloud. All you have to do is spam those smoke grenades and shoot on everything you see.
Which weapons and strategies should I use?
Since challenge for unlocking Bruen MK9 requires of you to use a light machine gun, we recommend you to play with an LMG you are most familiar with. Here are our recommendations:
SA87 for fast-paced matches – this light machine gun practically behaves as an assault rifle, so you shouldn’t have any problems with it. Equip it with Tactical Suppressor to extend its firing range, and add Commando Foregrip to improve hip fire accuracy.
You should also equip it with Sleight of Hand perk as this gun as horribly slow reloading time. As for optics, we preferred to Corp Combat Holo Sight on it for easy target acquisition. This build is best for playing on small maps, such as Shipment, and shooting enemies near smoke screens.
PKM for long range camping – even though you unlock this gun at Level 1, it is still one of the best LMGs you can get in this game. Equip your PKM with Monolithic Suppressor, Commando Foregrip, FORGE TAC Stalker stock and any laser of your choice. Also install Solozero NVG Enhanced scope on top of its. This scope will enable you to see through smoke screen and detect thermal signature of your enemies.
The best way to use this gun is to throw smoke grenade at you own position and hide in this smoke cloud. The thermal optics scope will enable you to see through cloud and dispatch nearby enemies. This strategy is best for maps such as Piccadilly, Shoot House and Hackney Yard.
And that’s it. You should unlock the Bruen MK9 in no time. Of course, you can always unlock it by spending by spending 1,200 CP. However, that option seems worthless, as grinding those three kills in 15 different matches won’t take too much time. After you complete the quest, the Bruen MK9 will be available both in standard multiplayer, as well in Warzone battle royale modes.