As it is at the moment, borg cubes are a joke compared to the lore. They should not be killable for single players nor smaller groups. These gian vessels should only be killable for larger groups, maby 10+ or so. Then what should then be classed as the borge battleship? Where is the "diamond"? Introduce these ships as battleships instead and class the cubes as dreadnaughts.
In single player missions, when encountering a cube there could maby be an option to call for reinforcements where npc ships will come after a little time to help deal with the cube.
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