you have to kill the top player 10 times in a row.
Its probably a later emblem for dlc
the colour of prestige 3 in mw3 is blue
you have to win 30 search and destroy games
Counter a uav 3 times in 1 game.
Plant two bombs in hardcore search and destroy.
plant 2 bombs in S&D in Hardcore search and destroy.
You have to win 15 games of hardcore team death match
get 3 kills while ur the last teammate on the team
Get a "Payback" by sticking a Semtex on an enemy
Makarov
You can get the "pot plant" as your emblem in Call of Duty: Modern Warfare 3 by killing an enemy by setting off a chain reactions of explosives.
You kill 3 enemies while the last one alive in Search and Destroy.