Same here. I find that the best way is to grind to the spawn beacon.
With that, you can keep re-appearing behind enemy lines and spot them for your team with the scope. (VERY useful in BFV). NB - the beacon is on a timer. each time you use it, look behind you to ensure that it still there. If not, place it again.
Don't bother with the flare pistol unless they have buffed it recently. Useless thing - keep the scope.
Rifles are personal choice - but I find that I get most points not from shooting, but by the support activities. The fifles are so loud they are a dead giveaway. I tend to run around with a pistol, and just take to occasional pot-shot when I think I'm clear. Then MOVE immediately afterwards, otherwise I'm dead immediately.
Just my 0.02