Join Date: Aug 2010
Location: Belgium, Bruges
I've lost count of how many people converted their dark elf dragon out of the high elf dragon set. It's totally legal and your opponent doesn't even have to agree. The larger base does not bring you in an advantage position. For example when deploying you can only stand up to 12" away from the edge so it doesn't matter if your base is longer, it won't start further. You are easier to be hit and more difficult to squeeze in between your opponents units. What your opponent has to say doesn't matter.
Futhermore, you must always use the base given in the box or blister and every unit type now has a certain base. Cavalry is 25x50, monstrous cavalry is 50x50, monstrous infrantry is 40x40, normal infrantry is 20x20 or 25x25 (so you may not make a 20x20 model 25x25), monsters, chariots and some unique units (such as the plague furnace or the bell) have the same base. The base provided in the high elf dragon box is the official monster base. The malekith model is old and dates back to certainly 6th edition, if not more.
So you may not extend the base beyond it's given size, you may give war machines bases to make it easier but it's still the model that counts as stated in the BRB. The only annoying thing is that some models don't exist (such as the abomination untill shortly) and then people try to argue that the base might be something else and they ask GW, which as usual replies slowly. Ofcourse I'm talking about tournaments, should you play a friendly game and a person doesn't want to play against you because of that well, you can't really force him.
The Guardsman is just like you, from any city in the mighty Imperium he goes and fights a war he does not fully understand. Unlike many in this galaxy he is not genetically altered clad in powered armor or inhumanly fast. he wears only his vest helmet and holds his lasrifle. He is a guardsman and HE WILL HOLD THE LINE