Mechwarrior: Living Legends (Crysis Wars mod, aaaaand since EA dropped Crysis and Crysis Wars support along with BF2, the licence key check is no more and you can play with trial version of CW or use the standalone installer). Combined arms, no pay-to-win or grinding, better balanced, less buggy, and with more content than Mechwarrior Online. Sadly, MWO pulled the plug on something that offered better gameplay for free, but the mod refuses to die even if no new development has taken place for three years.