I decided that the reason I pledged to Z. Torvald is because she looks quite like Mrs. Hollyrood should (from Passin' Through).
The "combat walls" we are talking about aren't physical walls.
It is a, well, in lack of a better word, psychological wall for people who haven't played first person shooters and are thus glorified cannon fodder in ground combat situations.
However, the wall metaphor for the hangup was actually making a real point: Yes, the answer is yes what you had asked about - Increased shield regen can help. Especially if you are able to keep the shields up as much of the time as possible (possibly by ducking for cover). Take shelter dear CMDR McWolf!
Well I played some Wolfenstein 3d in the 90s, and James Bond Goldeneye on a roommate's N64 with some frequency. So you could observe that despite FPS experience, I was still cannon fodder anyways. But a CMDR can go out there and achieved ANYWAY anyways!
Yet, all Mr. Passin' does is larceny and Imperial experimental hobnobbing. Only sometimes, he had to shoot some poor buggers from interfering with his innocently taking down their alarms and inject malware. And sometimes I went to jail. A simple Imperial maintenance man am I, is all.