Chekov was a weapons god, even in TOS. (Seriously, this is actually one of the most amusing bits of TWOK as well, Chekov takes the weapons, blasts the Reliant to shit with a series of perfect shots, fight over.)
See, now this is the kind of stuff I'm looking forward to in the new timeline. The writers get to take the scraps of characterization thrown at the supporting roles and develop them properly!
