I can’t ‘protect them with my invisible force fields?’ (Since I deliberately picked a window out of sight of the police cordon at the entrance and Sleeper would have seen the mooks if they were real mooks made invisible beforehand rather than holograms?)
In that case what can Sleeper see as far as the other exits? (I know you mentioned some for Kaine, but can Sleeper see them?) Where are the hostages in relation to the doors, and how is the room set up in general (furniture or other cover, placement of mooks)? Are the hostages wearing gas masks too? (I doubt knocking them out and carrying them to safety would be a good strategy at this point, but if they start to panic mid-rescue it might be a better solution than letting them run into the line of fire.)
Also I would like to throw down the webline outside anyway (Sleeper put it down before finding out it would be useless or whatever) as its meta-game purpose is to provide a clue for Kaine on the off chance Sleeper manages to spend the entire mission invisible or in disguise - since Kaine’s going to know he didn’t put a webline there, and that obviously isn’t one of Sue’s powers.
So glad you asked! 😄 I was planning to incorporate a ‘space and/or extra dimensional environment suit’ to disguise the extra bulk (and height - Tel-Kar’s kinda tall, so there will likely be some clunky-looking boots on this ‘environment suit’). Possibly drop a comment about just getting back from the Negative Zone and not having time to change, if questioned.