No unit is dumb enough to drop into a prepared position. Drops are extremely random and can scatter a company sized unit over tens of kilometers or more depending on how high the dropship was and how fast it was moving. Typically you drop, regroup, and move to the objective. Oh and lets not forget, a drop has very high probability of causing damage to the mechs involved. Most of them arent meant to fly, lol.
As to prepared position. Given limited forces available on both sides, there has to be something worth going after for a prepared defense to be effective. Set up a defense and will I send my forces to capture a nearby city and avail myself of its resources and man power. Come out of you defenses and mayhap I set up an ambush myself. Oh and as the attacker, I am not leaving you any satellites to watch me with, my dropships took care of that and are now watching you. Clans are a whole new can of worms as they will actually come looking for a fight despite your having set up defenses, IS commanders tend to be a bit more practical and level headed about it.
Edited by Kael Tropheus, 29 February 2012 - 02:01 PM.