Most aftermarket extended stanag (compatible AR15) magazines can hold 40 rounds. the fact the game limits it to 35 rounds has no pertinent reason.
Extended stanag mag should hold 40 rounds.
I'm ok to balance the game, but it must be done using realistics features. 40 rounds AR15 mags must be balanced by adding 40 rounds AK magazines (which really exist). Staying with realistics stuffs is the philosophy of the game since 2007. it must stay like this.