Have been playing this game for quite a while. I have reached the maximum level a player can reach without spending real$. Here are some of the issues I think we must know:
I understand that a game comes with a cost and hence the developers have to show ads to generate revenue. But watching an advert every 30 sec! becomes a pain
After a while, you simply cannot process unless you spend real money. It will pit you against premium players bearing single shot kill rifles in the arena and you stand no chance of winning against them. They have tweaked the algorithm where a free player having a gear rating of 10, 000 will be forced to compete against paid players having a gear rating of 53, 000+. It will spawn the free players at places easily visible to paid players.
So even if you bear with the 30 sec advert interruption, you still have no chance of winning.
Huge disappointment at the end.