Modding team Tripmine Studios released some new screenshots from its upcoming remakes of Half Life: Opposing Force and Blue Shift. The team is currently working hard on both of them. As stated, the remake of Opposing Force is called Operation Black Mesa, while th remake of Blue Shift is called Guard Duty.
Guard Duty is said to be developed as DLC/expansion for the bigger and more content-heavy Operation Black Mesa project.
Enjoy the screenshots!