A player who plays a medic in the Battlefield series who instantly revives his teammates at inappropriate times (
e.g. when there are
still enemies near them), causing them to most probably die again very
soon afterwards, which will have a negative impact on the revived
soldier's KDR (for as far as they care about that).
A medic typically performs Rambo revives when he is a n00b just to
get lots of points or does it for the lulz when he is a troll who likes to fck his teammates.
The "Rambo" part comes from the typical Rambo-style dash into groups of enemies just to
get points for reviving teammates lying there. However, unlike Rambo, it is very likely that they both die in a matter of seconds.
Soldier: *dies while fighting enemies close-by*
Medic: *revives
soldier* I got ya all fixed up!
Soldier: *dies again by same enemies*
Soldier: You just pulled another Rambo revive on me,
FFS STOP REVIVING ME F*CKING MORON, MY KDR IS DROPPING BELOW 1 THIS WAY!!ONE!