I generally think the first mission is poor. Why penalize someone for taking a bunch of troops? He MUST take at least 2. Why not make everything but troops give double?
Every single player must take at least 2 Troops to fill the Force Org chart. So it's not someone, it's everyone. No one player is getting singled out.
If you can provide a concrete example of how armies would be *unfairly* penalized, that's what I need to see. Some codices will have cheap enough units to allow more than 2 scoring units; an asset in objectives, but a liability here.
But why not make the other units double? A couple reasons.
The first is that there are some cheap HQ units for whom doubling VP value makes little difference in the game over all. Each scoring unit for most armies is on average expensive enough to affect a difference across all lists, regardless of codex. And the principle is the same, whether it be objectives or Kill Troops! Don't let the enemy kill your scoring units while trying to kill his.
The second reason is the real possibility of the Most Boring Game ever. It's too easy to hide an HQ for the entire game, and that's the only other guaranteed unit choice.
This conversation made me realize that by wording, Swarms are not scoring units and so will not count as double! But there's the problem of not being able to hold objectives in other missions...