Complex sentence: The group is surrounded by more hungries and defend themselves but Parks is forced to shoot Private Dillon who has been bitten and has started to succumb to the quick-acting fungal pathogen.
Split into simpler sentences: The group is surrounded by more hungries and defend themselves. After the atrack, Parks is forced to shoot Private Dillon who has been bitten and has started to succumb to the quick-acting fungal pathogen.