1) "Jetpack".
It is hard to resist using Helicopters. The convenience the heli brings when travelling through the maze of the big base simply forces you to forget how OP is it when it comes to wiping up the biters. Heli just completely kills the spirit of challenge which this task is supposed to deliver to the player. But traveling usage of Heli has some limitations - startup time, valnurability at low altitude, availability (waiting for called heli). Not so good if you just want to quickly pass by an oil processing facilities without trapping into an annoying pipe web.
Therefore I propose a mild alternative - a module for the modular armor that lifts you over the terrain and let's you fly over obstacles when toggled on (similar to the activation/deactivation of exoskeleton). An electric device consuming a big deal of power (around 1 MW or so). Considering possibilities of landing into water or unpassable terrain - water=death, unpassable terrain=stuck.
Would also be nice if toggling on the jetpack would change the character's appearance also.
2) Charging plug.
A feature many times proposed, and still, can't find an implementation I would like.
Feels ridicules to wait for batteries to charge up standing in the middle of the base overflowing with gigawatts of power. A must-be module, IMO. Personal solars and fusion reactors are good, but really, no way to charge up your suit from the power lines?!Just those two for now.
