Assalamu Alaykum, Nidal!
Action! Gore! Chainsaws! Conflict! Over-the-top animations! All things combined to give you that classic war game shoot-'em-up experience! This puts me in the mind of Gears of War.
I cannot think of any games that are based on this side of the conflict, so I can see how this game can be politically controversial. However, as long as you continue to make the game entertaining and not too “serious”, I can see this gaining traction in a remade, upgraded version.
What are the top three things that you would change or improve moving from UDK to UE4?