Rifleman, Modern (5e Creature)
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Medium humanoid (any race), any alignment
Marksmanship. The rifleman gains a +2 bonus to ranged attack rolls (included in the attack).
Throw Grenade. The rifleman throws a fragmentation grenade at a point up to 60 feet away. Each creature within 15 feet of that point must make a DC 15 Dexterity saving throw, taking 5d6 slashing damage on a failed save, or half as much damage on a successful one.
Knife. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage.
Assault Rifle. Ranged Weapon Attack: +6 to hit, range 200/600 ft., one target. Hit: 15 (3d8 + 2) piercing damage.
A well-trained, properly-equipped infantryman who fights for a professional military.