The best replacement for mw3 is black ops.

The best alternatives to mw3 are rated as following:
★★★★★  black ops
★★★★★  black ops 2
★★★★  battlefield 3
★★★★  bf3
★★★★  mw2
★★★  mw4
★★  ghosts
★★  skyrim
★★  black ops 1
★  ghost
★  battlefield 3 poll
★  black ops multiplayer
★  cod ghosts
★  cod ghost
★  ghosts graphics
★  cod4
★  battlefield
★  bo2
★  black ops 2 multiplayer
★  black ops 2 graphics
  bo2 which is better
  mw2 graphics
  halo reach
  halo 4
  bf3 poll
  bf3 sales
  cs go
  bfbc3

Your alternative for mw3 is not listed? Suggest!
Speaking about mw3, one probably shouldn't forget about ps3 move.

Other search terms related to mw3 and their ratings are:
★★★★★ ps3 move
★★★★ buying harden edition
You have in mind a companion for mw3 and it is not yet here? Propose!



Google Trends

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mw3
black ops
black ops 2