I alluded to Daggers killing phase ships earlier, purely as an unreliable anecdotal observation, so I decided to so some testing.
I've found out that Daggers, Tridents, and Khopeshes wait for the phase ship to dephase or be unphased before firing. It is difficult to tell for Perditions and Cobras, as they are manoeuvrable, but it seems Perditions too, wait for the phase ship to be unphased. Cobras tend to not fire the reaper at all, being either too close or the prediction of the firing solution never being found, so I cannot tell. Longbows certainly do not wait and fire without regard of whether the ship is phased of unphased.
I see no point testing with the Piranha or the Lux.
So Daggers, being fast and manoeuvrable, with a fast tracking missile do rather suprisingly counter phase ships. If it is close enough, it is a certain hit on the phase ship as it takes 2 seconds for the phase ship to recloak. It's just that Dooms tend to kill all fighters with ease, so I never really observed it clearly before.
It's suprising, discovering a new thing about this game after so long. To find out that some bombers wait for the phase ship to decloak before firing. I naturally assumed that like most fighters, they just fire automatically. How many people knew of this beforehand?
_________________________________________
I guess, i need to repeat, that we are talking about IBB mission. It is like 20 phase ships, mostly destroyers and cruisers, many have officers, all fited optimally to hit and run all as one, not like idiotic pirates. They move faster then regular phase ships. They appear, stab you with reapers or just overload you by ton of deadly *** and then kill with reapers.
My fleet was like 2 Victories, few Legions and an Onslaught. I defenitely neet to change something. At least: pick some ships without vulenerable rear.
Sounds like to me that the problem you have is that you have a fleet completely geared up to fight capital warships with no leeway for anything else and it's a relatively tiny fleet to boot. Just the destroyers alone would be 20 x 20 = 400 DP, nevermind the Cruisers. What will your fleet that looks like 240 DP will do against that?
Also you talk about officers, but the normal assumption is that both fleets will have officers, and so equalise themselves, so it sounds like you don't have any. Get some officers and train them up.
Based on what I have just discovered, the easiest and quickest change you can do is swop over whatever loadout your Legions have with something with burst laser for DOOM mines; even Longbows will do, and Daggers. Alternatively, based on what Serenitis has written, you have at least the minimum number of medium missile mounts for spamming Pilum. let us know how you get on.