Omg....I hope that's what it is and it works....and that what you can carry can shoot while in transport....
Trolling will reach all new heights as hilarity ensues....
Place longtom on unreachable Cliff/Mountain. Drop a few AA huits up there. Watch the lololololololol fun from your transport Vtol.
Have Sullas Firebolt LT from over 1200 meters to avoid AA 
Have enemy LT take out your LT and both Huits 
I sense issues with this plan 
I doubt an LT on the ground will get the angle to hit an LT on a mountain lol. Possible. But unlikly. And to narc the AA tanks and LT they have to get within 900m. Sure they aren't likly to die but even at 1200M, they can still be damaged not to mention you can just get one person doing AA duty in an aero if you really want to stop the camp fest from dying 
I've landed narcs from over 1300 meters (1353m or something), so you don't have to get near 900 meters to NARC (900m is where they lock, but as long as your NARC doesn't crap out and Veer off {even a degree or two at that range will cause a miss, but hey, you got 4 shots} you can easily hit stuff the size of Huits and LTs at that range, especially since they rarely move) and you can shoot your TBolts from the same distance (if a Huit actually even SEES you at that range he won't bother wasting ammo) Having a BS Shiva patrol the skies would probably do it but that thing is called the
BullShit Shiva by many for a reason
And like El said, hitting an LT on a mountain isn't much of an issue anyway