Just to be sure, we have only 2 lances starting, Kong and Bright, and can only call up 1 for reinforcement? Gathering intel for if Lucas wants to help command. As of right now I don't see aproblem starting at 10:30.
We have two lances starting. Kong and Bright.
If Lucas is OK with is, he'll "help" Lt. Blunch (Mike) by lending his strategy rating, allowing 1 Lance to enter as a reinforcement group. Note that this is a 1-time thing; don't get used to this being a possibility for future games (see below).
All Lucas needs to do is tell us "yes" or "no" whether Mike can use his Strategy rating for this mission.
Note that under normal circumstance, Lucas would be the local commanding officer, because he's got an equal Tactics skill and a better Strategy skill than Mike. But as I said above, that's throwing him into the deep end sooner than I (as a GM) am comfortable with; this is why Mike is the local CO for this mission. After he's had some seasoning in the campaign, he'll be a candidate for local command just like everybody else.