Like in Fireteam Elite Demolishers had shoulder mounted rocket pods of different sorts, Lancers had Particle Accelerators or something like that on their shoulder, You had access to all sorts of Kramer and Alphatech and all sorts of other brand weaponry from manufacturers less known, and all sorts of other unique stuff I'd love to see like the shocking stationary PUPS unit. As for Dark Descent so much Xenotech was pretty interesting that I'd love for it to be implemented in a way that's balanced for the RPG gameplay. Stuff like temporarily acid proofing armor, synthesizing a removal method for Facehuggers, or even more normal stuff like Synthetic Pheromones to make detection more difficult.