Both are completly garbage.
They both use the same old PS2 game engine.
Both jipp the maps from the stupid Story map.
And both use the same outline in story
-Team with white guys and 1 black
-Leader dies
-Team wants revenge
-Team wins somehow against over 9000 enemys.
Also Call of Duty series says that its the most realistic shooter ever, when theres more flaws in it then near any other shooters.
-Flashbang grenades can kill by hitting in a chest
-You can shoot a desert eagle faster than the terminator can, and still keep your wrists
-You can take a desert eagle shot to the face, but die from a knife to the foot.
-You can blast >9000 Bullets into somebodys face, then get killed while you're reloading by the same person.
Theres many other flaws, I just hate rambleing
If I was to choose Gayarch or Infinity Sellouts
Id take Treyarch, they actually care about people, and change the game atleast once every 6 months.
The games are the same, No diffrences.... Treyarch has more variety, and adds more than 1 DLC.