Hell from on High

LT. Ethan Gunner was a rational, if ruthless man. Sending him on a deep space mission to colonize a planet seemed like a terrible idea. Yet, he woke up on a ship, in the deep void of space, on route to an alien planet with only himself and a medical droid, with hardly any memory of what he signed up for. Upon arrival, he finds life, though these lifeforms are unlike any ever seen. Survival had now become the number one priority, though the life here threatens that goal. A normal man would give up, but a trained soldier finds a way, and Ethan Gunner is one of the best.
(if anyone has advice on how to make covers, please tell. I could use that information to make my stories that little bit better.)