Your game immediately stands out, with the hot pink headers, white background, and grounded black text. All of these fit the theme of the game nicely. I don't have a lot of experience with group TTRPGs so I can't say how well your mechanics would work, but at a glance I think they should. The attack moves are cute, and it shows you really thought out how you picture some of the combat would work.
I think one of the document issues you should take a look at is when leveling and and HP in general. I think when you say that +[COM] HP starts at something or goes up you mean the Commando. But Combat also using [COM] as an abbreviation which is confusing. It would be clearly for players if you made one of those different.
All in all, it seems like a good rules-lite system that a group might use.