Doomsday Shootout Game

What will happen when all childhood memories of Cross Fire, Counter-War, CSOL, Call of Duty, Gunslinger, etc. Appear in the end of the world? Is he dominating one side, or is he ignorant? Who knows the future. There are no artifacts or powers, only genetic enhancements at most. Characters in each game will come on stage to help you, restoring the truest doomsday, just to remember your past self. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.