I actually really love the guns in graal. Its something new and unique and it is something really rare in the mmorpg catagory. The 2D part makes it even better. Otherwise, you would have something like dayz that is just you dying left and right and have no clue wtf is going on. But the 2D allows you to see all around you so you know if theres a guy behind you and the slower bullets helps a lot as you can dodge them easier. I feel like a ninja in a anime that can kick ass and dodge all the bullets around you, and at the same time feel like a soldier as you are stuck behind cover completly pinned and have to peek out of cover and take quick shots then duck back into cover. I love it and if theres no game breaking guns in the combat, then its a blast.
And not to mention, feel like a total badass when you mow down all the defenders and take the base then proceed to hold them off and going on rampages.