Seems to much cluttered Ashika Island, games tend to end quicker as well due to the gas closing quicker than Rebirth.
It's pretty good for DMZ though, nice PvP fights and amazing loot than on the bigger map, if you don't fancy going into Al Mazrah with a 1 plate armour or want a decent contraband or loot gun, Ashika is great getting fully kitted up for your next match in Al Mazrah, the Strongholds are 3 plate armour and self revives galore and decent guns, and exfilling seems to be easier than Al Mazrah with only 4 teams of Operators on the map.
The Iso gun is the best AR in the game, it's amazing at mid to long range, easy recoil and high damage that melts Armour, on MP you can make it into a SMG hybrid with no barrel and no stock like you could with the Kilo and AMAX in MW2 go against smgs.