Haven't played Valkyrians in a long time, decided to try a bit the campaign with them. Didn't went very smoothly.
I struggle a lot with their ships, granted i currently use a single one but while i can efficiently farm pirates with an Enforcer or any vanilla destroyer, i have trouble fighting anything with the Elfheim (the only destroyer available to me then). The best way to go i found was to go full berserk and end the battle in less than ten seconds with incendiary ammo and hoping to kill everyone before i reach my flux capacity. But everything i can't outgun... Tends to kill me.
Tried that with a few ships, the Almire, the Nirvana, the Heron... But yeah, not really good in 1v1. Gotta change my tactic and go more fleet based warfare, i'll probably try going full carrier mode with swarm of bombers.
Also, in another game, i managed to get my hand on some Infinity wings and duplicated them at the Omnifactory. 100 FP of those worked pretty well, couldn't take down the royal armada though. I would be curious to see a video by some good player on the forum taking down that boss fleet and how they do it.