No, not a bash, I did this as a test one night when I was buzzed and really didn't want to go into the spaztic ground missions with the AI.
Turns out, outside of the end encounter in 1 of 4 Ground Missions where I did die, I'd set a target, tell my npc's to attack, go around the corner and then go surf the web til I noticed no one was getting hurt anymore. Rinse and Repeat (I play in windowed mode).
This only took slightly longer if I participated. I know, old hat, "ground combat sucks", spaztic AI runs around like headless chickens, etc... I know. I'm not trying to miss out on parts of the game either, in that moment, I didn't WANT to beam down anywhere and I found this out.
Hope this improves, cause this little accidental test is suprising to me.