Stuck in a Fantasy World with an OP Shop

The man be sitting in the plane with the other paratroopers and they all be feeling nervus but that is not until they jump out because that is when they all get excited because theyknow they will be falling soon and joining the fight with their comrads on the ground to shoot pew pew at all the bad guys just like the main character who falls down a hole bunch but gets hit by flat and falls down really fast like really really fast and cant do nothing when he hits a tree it hurts him real bad and he gets teleported to a new world thats very different and dark everywhere and stuff its not good in any way but thats where the guy is