"Let's also not forget about local law enforcement, perhaps a few dead officers who responded and were taken down by the aliens before the rest pulled out, waiting for PHALANX troops to arrive to deal with it."
Agreed.
Injured policemen would be nice (new models based on each country police would be required), even more if PHALANX's members could give them orders like "Go ahead, I'll cover you" (bait) or "Stay away, officer" (spare).
Communication (orders) with civilians would be awesome as well, but I believe this was already suggested, right?
Imagine if we could arrange some "ship megaphone" and order a soldier to send large speeches (orders to all non-alien NPCs) like: "People of *, PHALANX has arrived to secure your region. Stay calm and seek a place to hide until we reach you."