There is a lot of talk about improving the tactical side of Sins so i wanted to add a idea that would have been very useful in my last game which would add a bit more depth to sins. I was playing against two other empires on a small map so i only had 2 planets and 2 atseroids. Between my two planets was a uncolonizable asteroid belt where all my trade ships passed through. One enemy empire kept sending a fleet of 2 sovl cariers, a battlecrusior and about 15 frigates into this asteroid belt to attack my trade ships. My fleet was split defending one of my planets and one of the asteroids which was 2 jumps away from the asteroid field. My closest fleet (defending one of my planets) wasn't strong enough to defeat this fleet without being decimated istelf)and either there wasn't enough time to bring my 2nd fleet over to ensure victory or else it was too risky with the other empire breathing down my kneck! Then once i had finally got a large enough feet that could singlehandly destroy this raiding fleet the raiding fleet simply jumped back to their own world before i had destroyed more than a couple of frigates. A frigate class ship with the sole capability of inhibiting phase jump would have solved this problem and would really add some more depth to the tactics of Sins. Alternatlvely this could be added as a special ability of one of the more support orintated capital ships. Would be admirals would have to take into account the possibility that their fleets might not be able to leave a system once they enter it before launching invasions.

In my case I could have jumped my first fleet in knowing that back up was on the way!! Or would have stopped the raiding fleet fleeing when i finally got a bigger fleet together. This would create a dilema for the opposition either they accept the loss of their fleet or try to save it by jumping in reinforcements themselves to try and salvage the suitation which could lead to colossal battles!

My thinking on how this could be incoperated into the game is by only allowing 1 mobile phase jump inhibitor per empire this in itself would force tough decisions as in larger games they would be very useful all over the place but only having one means choices have to be made. More than one would just end up with it being impossible to jump into any opposition territory without encountering a mobile inhibotor. They would also have to have very strong sheilds to avoid the other fleet rushing over and just destroying it but this could be countered by it having no offensive capabilities. Even without strong sheilds the very fact that an enemy fleet would have to rush over and destroy the mobile phase inhibitor before they could flee allows your own fleet time to do some damage.

P.S for anyone familiar with Star Wars this idea is basically a Interdictor Crusior (see external link)