i started playing BF4 last 2 months ago, no BF3 experience, till now KD 50% only lol, skills around 160.

at first month also same problem with you, run run run then suddenly die. KD lower than 30% LOL.

then become slightly better - always try to flank, and never walk on an open road/area unless got vehicle coming along and help suppressing the enemy. when getting shot without knowing where the enemy is i just keep jumping and running to cover.

yea agree on the teamwork - teamwork is rare in BF4. I only remember once i join a squad full with the china people using mic, listening to their command and act as a squad instead of lonewolf, good time haha, a bit annoying though lol.