Keep the sensitivity at whatever level your conferatable with, use guns that you like, don't use target finder or duel band because you'll be making yourself relie on something useless half the time.Use a LMG or SMG at the start to get the feel of things, and I suggest the QBW and the MP7 and PDW,they all have huge clips so even if you have bad aim you won't have to reload as much as other people.