TENNO REINFORCEMENTS Posted on 07/06/2013 - 15:45 The Tenno Reinforcements are back in-action this week and introduce Warframe’s first ever boomerang, the KESTREL, and a polearm, the ORTHOS. The KESTREL boomerang is a heavy throwing weapon that can knock down enemies at a distance. The Tenno forged ORTHOS is a rare double bladed polearm. Those who take the time to master it speak of its impressive striking distance and ability to hit multiple targets. Add them to your arsenal today!