CSGO guns? *smashes download button, breaks mouse*
Joking aside this map is probably one of my favorites right off the bat. Its a truly a "custom" zombies map: custom muzzleflash, custom sprites, custom backdrop, custom textures, custom GUI, custom everything! The soundtrack is awesome, and if you didn't notice, I REALLY like the arsenal.
All in all, 10/10! You, sir, did an awesome job!