Firstly, Phoenix rocks! Boo to shroud!
Okay. Actually, getting a ship with blindfire is the best. But there's a funny quirk about blindfire: it only works when just one pair of guns is selected. That means that to get blind fire to work on ships like the phoenix or patriot, you need to press G (I think it's G by default) to select only one pair of guns.
Secondly, torpedoes have like 1 hit point. That means one shot from the weakest gun will hit. Therefore, you want the fastest firing gun so as to get the highest chances of hitting a torpedo. On the phoenix, that's the gattling lasers.
So we have gattling lasers with blindfire on a phoenix. And now I just remember that we have to change the loadout. You'll want to have 2 fuel pods (lots of afterburning). The other two slots could either be Screamers (20 dumb-fire missiles) or solomons (4 automatic aquiring missiles) I go with screamers (to take out secondary objectives) but you may want the solomons.
So now we've just nuked the carriers, and are taking off from the yamato again. First thing you want to do when you get control is to immediately afterburn to where the first torp bomber appears. (It's about 45 degrees to your left, but I'm not sure). If you can, kill it before it gets to launch its torps. (Makes a job SO much easier, but watch out for the resulting shockwave). If you manage to kill it, good. If not, then switch to gattling guns and take out the torpedoes with blindfire gattlings.
Now, keep pressing T until you target the closest torpedo. Afterburn towards it, then kill that group of 4 (If it automatically selects a torpedo in another group after killing this group, press Y to target the torpedo under your targetting sights)
I forget if there's 3 or 4 bombers total in this mission, so just do the same for the next group(s).
And if you need to, send a group of four solomons to take out a group of torpedoes.