After playing X-Piratez, a couple of ideas for OpenApoc poped up in my head: 1) Presence of the transport ship/dropship at the battlescape: similar to what it was in original X-COM's, where crew starts inside ship, with only difference that if ship gets damaged in battlescape it affects ship's integrity in cityscape as well. 2) Mobile Weapon Platforms in battlescape. I really missed these days when you could mount blaster tanks and obliterate everything just for the sake of it. Also, Hover Tanks. If make them customizable the way soldiers equipment is managed (like in UFO: Afterlight), it will be twice as neat. 3) Large ship landing/takeoff shafts (with 3x3 hangar facilites) and large human + X-COM ships (i.e. same size as large UFOs). I think Avenger Mk.III or Conqueror from X-Piratez will look super neat. In addition, provide aliens with UFOs of even greater sizes and power. Escalating scale of warfare - it should look especially amazing with Apocalypse's level of detail. 4) Make originally prohibited/unused base tiles expandable into corridors for a certain price. Add additional sizes (3x3) of workshops and research labs to support massive production prowess that will allow to produce large ships within reasonable amount of time. 5) Infinite technology that will allow increase/boost something by 1% every time it is researched. To ensure that research labs won't become obsolete and always will have what to do, even if entire research tree is completely unlocked and thoroughly researched.