This is DM server, not TDM. Gang wars fit in with the gamemode because singleplayers without partners can fight them too. There's hardly enough gang wars as it is, it's mostly always 5-10 people ganging up on new players in north ammunation, also if you picked well your gang mates and you syncronise the teamwork nicely, you wont hit him half as much. The thing I've noticed here alot is that most people don't even aim in big fights.
Spawn armour... we catch alot of cheaters thanks to not having things like spawn armour. You want more cheaters getting away with it in the server? Then keep asking for it.
Also, these suggestions have been suggested many times before, take your time to look through the discussions there's been about them and why they haven't been accepted.