Multiplayer: it's a trash game for 60$~80$.
For me SBMM is the main issue. After like 5-10 games you play against the same people, you will notice the same clan tags and names. Maps are badly designed too, 1/3 or half of the maps are unplayable with lots of campers and pointless corners.
Guns are similar to each other, mp-40 is op, that's fine for COD I guess.