Less weapon modification I think, but largely the same game really. I’d say its worth a replay. I think 4 has more memorable levels than 5, but 5 if a more polished experience. Lots of levels I wanted to replay in 5, but realized “oh shit that was in 4 not 5”.

Definitely recommend sniper elite 4, 5 and resistance when on sale. They’re functionally the same game for the most part but damn if its not a winning formula.