Only use a sniper if they’re your best merc… In min 10 servers I’m hopeless with anyone but Aimee or Vassili because I’ve played them so much, and occasionally Stoker…
Some things you should never do in DB
As a medic, don’t be a hero.
Unless you’re a very good shot.
Still don’t forget to revive.
[quote=“Tom;27865”]
If you guys can think of any more things to add to the list feel free to tell me and ill add more
#PlayDirty[/quote]
I have some corrections! 
Cuz’ I’ve played the game, in game, for over 800.
Do not work against your team with redeye, place it where it will matter, where an objective is, IN the enemies area, in their spawn so they take longer to leave, etc. So good point there.
Whilst playing (ANY FIRE SUPPORT) never stop dropping ammo. Your ammo constantly refreshes, so you need to constantly throw it. Also, aim for the mercs with cooler abilities, this causes their abilities to refresh faster if you hit them directly with the ammo pack.
Never repair while a teammate does it, unless of course you are faster than them or an engie. And fudging guard them sometimes will just work better still too. … Yeah,nvm.
Or aimee. (shivers)
This last quoted rule should not always be followed. Team should sometimes split up, and if you’re playing certain mercs, you should definitely NOT be with your team. (Phantom, redeye, snipers, etc.)
there are also many tactical advantages the game offers by not bunching up with your team for easy nade deaths. 
@SereneFlight Unless that Nader doesn’t know how to Martyrdom or is dead already