Since there will be so many opportunities to earn double XP and to even stack multiple double XP's together, will/does MW3 have an XP Cap per game. For example, in black ops you could only earn a max of 50,000 XP/Game ( to prevent hacks ); but in MW3 it would be very possible to exceed this cap.
In this case XP hacks would be a lot easier.
In this case XP hacks would be a lot easier.