Why is this game actually so much fun

Game is now finished.

Massive update today: Added the new forest biome.Added 2 new zombies for the new biome. Nerfed armored zombie. Reworked dead bodys. Removed speed powerup. Added new C4 bomb. Added new disguise.

New zombie added (450 hp). New weapon added knife. Armored zombie buffed.Claymore buffed. Flashbang nerfed.

New flashbang added which slows enemys down

Massive update new added armored zombie updated menu new added item claymore boss updated textures updated new added 3rd phase for boss nerfed upgrades fixed (before dmg gave damage and firerate) so see u soon this was made by one person have a great day :3.