Can we have the railgun and coilgun have some form of sonar tab so they don't have to walk over to the nearest point just to see an enemies location?

The game is really good and has a lot of charm, but I feel as though leaving the sub in an exosuit is just bothersome. There should be some sort of tether system or oxygen pipe that removes the need for oxygen tanks while you are outside. The pipe could be damage able to make it less viable.