COD Modern Warfare has never been released until it is flooded by the Infinity Ward studio with constant updates and today it is not much different but may be even bigger as the studio released a new update of 20Gb on PC and 15Gb on home platforms which is a giant size of course but provides many additions
For the Spec Ops phase, two new assignments, Harbinger and Brimstone, have been added. For the classic Spec Ops team, Kick The Door will be given a new assessment system based on the time it takes to complete a task your rating as a player through the number of stars you get rewards when you break your record.
As for the Multiplayer phase, it is no less exciting than the previous one, there is a new Playlist under the title Realism Mashpoint and available modes of play Domination, Hardpoint and Headquarters, but the controversial here is the return of a phase loved by everyone and his memories do not separate those who played Modern Warfare 2 and talk here about Gun Game, in which all players start with weak weapons and then armed with stronger weapons than the previous ones the more Kills they get to reach the most powerful weapon in the game when reaching the last level.
Finally, some changes have been made to the strength of the weapons with visibility in the smoke using thermal scopes and other details of the PC platform in particular. Read the list of changes here