Since both are featured in books, hopefully the moderator will allow this.
Backstory: The UNSC sends 250 ODST to the Federation. They receive orders to retake a vital communications outpost and hold until Klingon reinforcements arrive. The ODST are dropped in a specially outfitted Romulan Warbird and attack. They are armed with their standard weapons: armor, submachine gun, assault rifle, sniper rifle, three frag grenades. All are veterans of the UNSC/Covenant War.
Remember that UNSC rounds are explosive and designed to penetrate shields and armor.