You should add make different models for each team so it's not just swat members everywhere killing each other.
Tiny little hints: Character Customization, A shop (no kreds), Fall Damage, Also the Option of Clan Tags. If you add those I know this will get very big. One more hint, good choice with unity I love the graphics! Bigger maps though... I know it's just you working on this but I think that with more places to run around sniping will be more effective. That's it and good luck on your awesome game!
And is is me or are there people flying and going through walls?