Sorry can’t check your game out roblox is currently down, but when I can I will suggest something. Edit: I suggest making a bigger map that has hiding places so it’s more competetive.
I have not played your game yet but I do know some things you could add to an average fps.
A special thing that no-one else has in there game!
Here are some ideas:
Throwing weapons when your out of ammo
Move to a beat, turn it into a rythem fps like cadence of hyrule and phantom forces put together. I’ve never seen one of those before but you probably don’t want to do this because it would mean changing the entire game.
Use other objects as weapons like spitballs or toothpaste.
Try adding a map, first. Then make a loot system where you find loot across the map. You could also change from the default r6 animations to something more interesting. Try adding some more effects, too.
If you wanna have good ideas, don’t think like a developer, think like a player. What will make a game fun to you? Do it in your style. Don’t make a realistic shooter game, perhaps making an unreal shooter game? Make it colorful, Remember, your game is not Phantom Forces, it is Roblofield 1. Maybe inherit the shooting mechanic from Phantom Forces, then add some thing that you find entertaining: Extreme Futuristic Guns, Sci-fi armor suit, Jetpack etc. Break the limit.