I would like a move option. I don't think I've seen one in games like this, and it would perhaps make more sense than a sell option- especially since your units are people rather than buildings. Then again, maybe that would be too easy. Moving around to find the best option and putting units up front to gain exp then moving them to the back to prevent escapes.
This game seems harder than I remember. I wonder if this is a poor version of it, since I manage to lose survivors when I don't have any to begin with.