Sounds like what you need is a gun and some EXP bonus pass, you can find them in the black market of the in game "shop". There's alot of good guns available in the black market, but I prefer the M4A1 SOPMOD, that gun is currently on a limited time rare weapons sale. It used to only come out of supply cases which makes them really hard to get, but its also one of the best guns in the game. So if I were you I'd get that for 90 days while I still can, cause that gun absolutely owns. And you need to find out what your shooting style is, do you like to aim and shoot with accuracy or do you like to spray bullets into ppl? the M4A1 SOPMOD has really low recoil and bullet spread which makes it very steady even on full burst, and it comes attached with a reflex sight which would add up to the gun's low recoil and make it seem like the gun doesn't have any recoil at all, I would think as a beginner that would more likely to be your shooting style. But if you would rather try spraying a little then you need a gun with a big clip and good fire rate, if thats the case then the P90TR would be a good choice, and right now its available as a permanent weapon, so you can buy it for this once and never have to buy it again as it will replace your M16 as your standard permanent weapon, which would never expire. Or you could try mounting the nx red dot sight onto the P90TR and it would still be pretty accurate. As for the EXP passes, they're are available in the black market as well and right now I think there's one that gives you up to a 40% bonus EXP every match, now that can really come in handy. As for the type of matches you should play, if you're not really that good or you get killed alot, avoid elimination. If you can actually go to the enemy base and successfully bring back the enemy flag, then play capture the flag, unless you can't really even make it to the flag at all. Then theres search & destroy, which you won't respawn until the next round if you get killed, but if you're good with hiding and working with your team then you should try search & destroy. There's a few other modes like fireteam, spy hunt, and quarantine that you should try, they can be pretty fun but I can't guarantee that you'll get good EXP from them. One Man Army is not recommended for beginners in my opinion, as its a game where everyone is trying to kill everyone else, you have no teammates, no allies, and you shoot anything that moves, but if you like the sound of that you sure can give it a try!