I think you can build this one out. The bones feel good for something fun if you have the vision. Expanding on the squad system, add some guns and mutators and a varied gameplay loop would make this a good game.

 It ran a little slowly in my browser and the frame rate was quite low, so it could benefit from some further optimization. But the game looks nice, with a very appealing visual style. Good work!

Cool style and fun gameplay! Currently I think there's a too much extra text on the screen. I'd suggest moving the health/ammo UI to the top left, squadmates to bottom left and removing the combat log. Also letting people know to craft ammo when it's empty may be a good idea as well. Good work!