Its good, though I would make some parts of the melody more singable or hummable(y’know?) seems like a lot of notes, and itll be hard to remember, simplify it a little.
i don’t really like how happy it sounds. although it really depends on the gameplay
this sounds like it would be playing in the background of a survival game (i’m thinking of bomb survival, epic minigames. I don’t remember those soundtracks though), rather than an FPS game (i’m thinking about how this would sound in any of the top FPS games which don’t have a soundtrack)
i believe survival games tend to have more “happy chaotic” soundtracks; that’s why i think this wouldn’t fit as well in an FPS game