the place i play at each side has to huge bunkers and the players would shoot each other to close and theres restrictions so theres only one flag.What i do is i get a partner and we go to cover thats close as possible to the flag.when we get to the cover and its clear i give my gun to my partner and then run to the flag and run as fast as i can.and there you go.
If it's your first time playing for the first couple rounds don't go for the flag just work on covering experienced team mates([b][b][i]thats what I did my first time) and taking out enemies,then u can try going for the flag.