Finally, if it's a 'Traveller' space combat game, that was done back in the day (even the 2nd additon books has rules for it) and it was cack!
Power Projection wasn't bad - it was build on the Full Thrust rules-set.
Of course that meant it wasn't terribly original, either, being just Full Thrust plus rules for missing with spinal mounts.
Just seen this on the VaS board:
[Mr Burns]...Excellent.[/Mr Burns]
One can hope.
Starship troopers is still possible - I believe they still hold the license for it - but the Judge Dredd rules would be much better suited to a starship troopers adventures skirmish* after the fashion of the one that turned up in Signs and Portents than a massed battle system.
* It was a sort of space hulk/dungeon delve/warhammer quest analogue. Quite good fun, in its way.