An Idea for a Navigation objective: Holding Action.
Player 2 sets up all obstacles. If the space station is used it does not have the ability to repair damage.
Player 1 sets up all units first. The first player may set up from the middle of the playing area to his edge.
Player 2 then sets up all units in the normal set up area.
Goal is for 2nd players ships to get past first players. Any of player 2's ships that exit players 1's edge of the play area are removed from play, but not considered destroyed. Player 2 receives a victory token for each ship that exit in that way. First player receives a token for each ship of player 2 that is destroyed.
Thinking this will work with higher point fleets as well as larger play areas. I'm going to try to use this over the weekend on my 4'x6' mat.