If you want to use rifles recommend you M4A1, because it is good to spray and to give headshots (both at the same time). For beginners this is good, first you start by spraying and then you'll get better and give headshots with that weapon. Here you have a good review by FinalShotReviews (from Youtube):
You'll like M4A1. If you want to use sniper you'll have to wait until you can buy DSR-1 (a long long time :P), butt really that weapon is awesome. In Egypt sometimes I kill like 40 and die 5. Review by FinalShotReviews:
