S-tier starter picks: D-Wolf, Stinger and Rover. D-Wolf gives simple pressure, Stinger gives reliable squad sustain, and Rover is the current-season support pick to test first.
A-tier flexible picks: Luna, Shepherd, Hackclaw, Vyron and Uluru. These are strong if the player understands the role and the squad plays around the utility.
Do not treat this as a hard esports ranking. Delta Force has two very different main modes, so the best operator depends on whether you are extracting value or pushing a Warfare sector.