ImpossibleHitman vs Amok Chaser Utilisation & Stats

Let's help Joel, our beloved agent and hitman escape from the building. Upon gathering information for one of our biggest mission, he got caught by the enemy. Now it just time that can tell. He'll need to get out of that building as quick as possible. On each level, there are 3 keys that you need to collect in order to open the door to the next level. Along the way there's lot of guns and ammo you can loot from enemy storage. There's also other item such health power, special armor and etc. But quick, we're run out of time.