Is that important? You are someone, nonetheless.

[Live long enough, and memories are eventually lost anyway. People change. That's just life.]

It would be irresponsible to push already injured soldiers into a fight, don't you agree?

[In other words: duh. 'Course he healed it - and any other wounds the man picks up over the next week. As long as the black colour of Megatronus' symbol rings his Glyph, Sissel shouldn't need to worry about lasting damage unless he plans to take a nuclear warhead to the face.]