The STB 556 is arguably the strongest assault rifle in Call of Duty: Modern Warfare 2. It has an absurdly low time-to-kill, virtually no recoil, and a mobility stat that's closer to an SMG than an assault rifle. If you love hard-hitting weapons but can't stand slow strafe speeds, the STB 556 was made for you.

noun. check [noun] a pattern of squares. chess [noun] a game for two played with thirty-two (usually black and white) pieces (chessmen) on a board (chessboard) with sixty-four (usually black and white) squares. (Translation of xadrez from the PASSWORD Portuguese English Dictionary 2014 K Dictionaries Ltd)