Light machine gun

A belt-fed light machine gun flickers through official trailer footage briefly enough that identification rests on silhouette rather than a clear hero shot. The profile, with its long barrel, carry handle, and box feed, lines up with the FN M249 SAW, the 5.56mm squad automatic weapon that has been standard US infantry kit since the 1980s.

Confidence here is lower than for the pistols and shotguns: the appearance is fleeting and effectively single-source, so treat the exact model as a best-guess read of a passing frame. The series has carried squad-automatic-style weapons before, including GTA 5's Combat MG, so the category is nothing new for Leonida. Rockstar has not named the weapon, confirmed its stats, or shown it in extended use, which means damage, fire rate, and how it fits the final arsenal are all open questions until release.