If ships can take up two slots from different levels, we'll need rules for splitting points.
For example (Raid level game), if I take three Ganguts, each ! Raid, 1 Skirmish, I've used 4 Raid and 1 Skirmish altogether. I don't want another Skirmish level ship (all the russian ones are poo) I just want destroyers, but under the current rules, I would have to take a skirmish ship, or lose the point.