If you are looking for a game like No More Room In hell of Left 4 Dead look no further, Brainbread 2 is the game for you. But here are some pros and cons and a couple of suggestions at the end

-Made in the source engine meaning you don't need to have a 4 way sli Titan X setup to play it

-Has a point system to rank up your character, these points are needed to survive further waves in the game

-Has an awesome Horror-Electric soundtrack

-A decent amount of weapons including a minigun If you can reach level 30!

Three different gamemodes to choose from

• Objective: is like L4D or COD Zombies, to go get various items to go to the next part of the map
  
• Elimination: I havn't tried this out yet but im guessing its like once you die you can't respawn type of game mode
  
• Arena: You are placed into a circle sand arena and you must survive hordes of zombies including a boss!

-AI is sometimes a bit too OP and they swarm the middle of the map mostly where the guns and ammo are located

-Zombies sometimes can hit you even if your far away from them (By walking close to them and then dodging their attack)

-Servers can get quite laggy and bullets might not register

Suggestions!

• Have some kind of sprint mechanic because the jog speed is a bit too slow especially when doing slides
  
• Add a diving mechanic and make windows breakable so you can dive through windows!
  
• Make some maps that include vehciles that have turrets on them
  
• Add a game mode where you must defend a vehicle or a person of interest
  
• Make flashlights an item you must pickup to use will be usefull in the dark parts of certain maps and can add stealth to the Deathmatch gamemode
  
  Overall this game is great to play with friends and I wish the developers good luck in future updates!
  Here is a funny moments video that I did on BB2 https://www.youtube.com/watch?v=xUgQnQBTE0Q

-Bad FPS even on a decent gaming pc
-Poor Optimization
-Voice Acting is atrocious
-Animation is poor
-Multiplayer is Dead
-Trek Industries steals assets from other Developers and cries that it's being bullied by other companys

Overall: Don't buy this game it's a broken unoptimized mess most of the stuff they say in the trailer is absolute BS. Atleast for now don't buy it

Despite its P2W aspects this game is fun if your good at it, if you're new I don't recommend it as you will just get your ass whooped. I have played this game for 4 years and enjoyed it. Anyway if you dont listen to me and decide to start playing this game I recomend you play with friends and have working mic's because Teamwork is a vital part in this game.
Anyway's here is the pro's and con's

Fast paced third person shooter
In depth customization (The best I have ever seen in a game)
A pretty "artistic" community
New graphics and matchmaking update coming soon here is a preview

https://www.youtube.com/watch?v=VojiRd8Q3Ps

Poorly Optimized, Ask anyone who played apb a long time they would agree
Server can lag at times
Some guns are just too OP
Cant have more than 7 layers on a car and cant have more than 3 layers on clothing (You'll get used to it)
P2W-ish

Overall I would recommend this game to anyone looking for a GTA like game.