Complex sentence: After arduous training sessions that claim the life of one candidate, Swofford is one of the 8 remaining from the original 60 candidates and is selected to be trained as a sniper and paired with his roommate Troy (Peter Sarsgaard), who becomes Swofford's spotter.
Split into simpler sentences: After arduous training sessions that claim the life of one candidate, Swofford is one of the 8 remaining candidates from the original 60 and is selected to be trained as a sniper. He is paired with his roommate Troy (Peter Sarsgaard) who becomes Swofford's spotter.