I was playing Battlefield 4 for the first time, Rush, in Flood Zone, defender's side.
Still a total noob, I had just found out how my parachute worked, and as I was sailing down from the upper levels, a quad passed by underneath me. I turned, and right below me a enemy teammeber jumped of the quad and started hacking one of the few remaining cap points. So I grabbed my rocket launcher, while glidimg down on my parachute, knowing that I would never be able to just shoot the guy, and blew him to smithereens before he could hack the point.
Next thing, I land, and it seems that the entire enemy squad was after me. The enemy Commander probably thought me a goodguy for a High Value Target, and suddenly an entire squad of level 50 guys was heading my way.
I ran like hell, and just as I thought I was done for, with bullets exploding all around me l, the best thing ever happened: three guys, my squadmates, came sailing down on their parachutes as well, firing rockets into the enemy squad, obliterating it, and saving my skin!
Until this day, I am eternally grateful for their help, as they showed me that there is still teamplay in Battlefield, although I often cannot find it...