This made me remember Mayday, the drives were 2G on the starships. Thinking about that and the fact Mayday uses a hex map, maybe it would be interesting to mix the two. I know I have heard people doing it before, and I have memories of us messing around with it, same as using Snapshot. Anyone feel free to chime in, I started this as to not clutter up the other thread. Now time to go dig into Mayday, re-read it.
The drive are a mixture of 1g and 2g for the starships, smallcraft could go up to 6g depending on type, standard missiles are 6g. Missiles and smallcraft are limited duration due to fuel - the 6g6 missile for example has enough for 6 burns, each burn being 1g.
Scale used is light second hexes and 100 minute turns.
Damage is a critical hit system, a hit to the M-drive for example knocks it out and you can not use it until it is repaired. Repairs are very important for the following reason.
A ship is mission killed if it takes 4 or more hits in a single turn, or if it takes three hits in three consecutive turns.
Lasers cause 1 hit, missiles cause 2 hits if proximity detonated and 3 hits if contact detonated.
Missile hits are not automatic if you maneuver the missile into the same hex as the target, they still have to roll to hit, and you can fire missiles at missiles
There are rules for sandcasters, computer programs (note that evading costs you M-drive capacity), damage control, and building missiles during combat itself
