Ranger (2300AD role playing game)

"In the wake of the historic agreement between Black Sky and the Texas enclave, the Nomadic Ebers of the Great Desert have assembled for war. Attacks on New Austin's outlying areas are increasingly frequent and a Texas Ranger is missing... The player characters have been recruited to serve as auxiliaries alongside the Rangers. Now the Rangers have been ordered out into the desert to determine what is precipitating the war. Having come to Kormoran for a peaceful break from Kafer fighting, the player characters find themselves cast into the thick of a mounting conflict with hordes of aliens who can throw spears through plate armor. What was advertised as a relaxing stint of duty is quickly becoming a nightmare."