OOPH

The name is the sound the door makes when a team comes through it, or the sound a body makes when it hits the floor on the far side. Either reading fits, because every single thing OOPH builds is meant for taking a room. The marque itself is a blank; no faction claims it and no record names its makers. But hand an old breacher a piece of OOPH kit and watch them nod, because they know exactly what they are holding and exactly what it is for.
  Look at the loadout and the job assembles itself. The Bullet Sponge is armor that eats gunfire, letting a quick body shrug off the next few rounds meant to stop it in the doorway. The Tactical Armor carries a dose of chemistry loaded right into the plate, a brew the wearer can trigger into their own veins for a heartbeat of Resolve, and it keeps working even after the armor is shattered, which is precisely the moment you most need it to. The Room-Trap does the opposite favor to everyone else in the space, breaking every shield and every piece of armor in the area the instant it trips. And the Runner Checks keep a nimble body moving twice as far in a burst, for closing the distance or opening it in a hurry.
  No general armory reads like that. A general armory sells a little of everything. OOPH sells one thing broken into pieces: the ten seconds it takes to get a small team through a defended door and come out the other side still breathing. The older catalogue, with its barrier shield and its bullet plates, says the makers have been at it for a while, refining the same specialty season after season. Whoever they are, they understood the trade well enough that their gear still turns up wherever someone needs to be on the wrong side of a locked door very soon.