For seeing the awesome power of the NTD Repulse in the FS2 campaign, I basically think the Orion is simply an overkill ship.
However, just one thing.
I tried testing the Orion against a Ravana. The Ravana totally toasted the Orion up with its 2 SReds and LReds, with the Orion firing with only 1 TerSlash! How can this be??
Another testing mission. I placed a Ravana quite a distance off the Orion (about 3 clicks), and two Lilith cruisers 3000 metres either side of the Orion. However, again, it fires the TerSlash! I find this quite annoying, and replace the TerSlash beams with BGreens via Weapons editor. Still, nothing happens; the Orion fires no beams!
Is this a common problem?