QUOTE (Harbin @ Apr 22 2010, 07:19 PM)

I would have it have a bay full of launchable Helmdall drones, to be honest :[]
Reentry would be handwaved for awesome purposes. Some mod or something to compensate maybe hopefully.
There's also that vehicle (for ships I think) only laser weapon that can be fired precisely up to 15 Kms and only because the horizon will not allow for more.
All this is off the top of my head.
...I want to see a street sam squad delivered from orbit by heavily armored drone with the sams in rigger cocoons.
Reentry shielding for the Heimdalls would do the trick. Simple ablative shell that burns away as it enters the atmosphere. Then once it finishes breaking off, the missile fires up its engines.
The main gun laser you mention would have a bitch of a time penetrating the atmosphere. By the time it reached ground, or even a low- to mid-altitude air target, the beam would be just enough to etch your initials onto them. Barely.
But really, a fight between orbitals and down-the-well attackers would have the same issues as undersea warfare across the thermocline layer. If both combatants are above or below the respective barrier, then it's all good. But if they're on opposite sides, good luck with any kind of precision combat. Hence the Thor shot kinetic weapons.