A couple of additions that might be useful:
You can place strikes below a platform if there is an enemy on top of it, the strike will then hit whatever is on top of the platform, assuming there is nothing else above the target. If a target is below a platform it can't be hit by strikes, though it might still take some splash damage from shells hitting beside the platform.
It's also possible to direct strikes over cover if you know a target is behind it, by placing it on the cover as close to the target as possible, this works best with airstrikes and doesn't work well if airstrike accuracy is used.
Strikes are also a good way to throw an organized assault in disarray, drop a strike somewhere in the middle of the attacking force, preferably near the front, and watch as the ones in the rear stop to avoid getting hit while the rest keeps going. This serves to break up a powerful blob into smaller manageable groups that are almost guaranteed to take severe losses because half of them is committed to the assault and half isn't. The damage and screen shake the strike itself causes further increases the mayhem, and might keep several hostiles distracted long enough for some of their buddies to go down.
I believe this is the single best use for strikes, unless your team is severely behind this is a game ending move.
Edited by Satan n stuff, 17 August 2014 - 04:02 AM.