I think that means there was a mix of rifles and cannon on board (possibly borne out by the lack of obvious big stacks that used to be visible in his territory). It's a shame that we're not likely to get his power graph again before the game ends...
Now just don't reinforce your capital 2mn
Completed: RB Demogame - Gillette, PBEM46, Pitboss 13, Pitboss 18, Pitboss 30, Pitboss 31, Pitboss 38, Pitboss 42, Pitboss 46, Pitboss 52 (Pindicator's game), Pitboss 57
In progress: Rimworld
In progress: Rimworld