i got a few tips on abandon seeing as its my favorite map.
1. Check where your team mates are odds are most your battles will be on the beach, top mid and bottom floor.
2. Rush for power weapons and pre nade the area. Such as going for scatter shot which i think if your playing infinity is the most important weapon
3. When you get a sniper, postion yourself on the beach, in the purp side cliff and have a escape route in my mind when the other team gets pissed because your taking all there heads off.
4. If you go top mid, make sure your with your team or a team mate. Odds are by yourself you'll be shotgun, boltshotted etc if they have map control.
Hope these couple tips help!