It still loses and dies to cyb and aeon while hardcountering sera.
The idea of just making valiant a variant of exodus is incredibly uncreative and is throwing the baby out with the bathwater. Give factions a way to play around each other dynamically, not just make each stage a “spam 1 unit all the time” situation.
Seraphim have a short range destro -> their faction focuses on killing priority targets and then moving out of the point of contact, constant micro of the specialized destro where you minimize disadvantage and maximize advantage
UEF has the short range destro -> give it a reason to exist by forcing other factions into going into it. It can’t submerge to avoid damage like Sera (nor have more speed as under this proposed rework) so you adjust Cooper to be that reason. Rather than minimizing disadvantage through micro UEF works on unit mix adjustments.
Aeon is the brute force destro spammer with highly specialized ways to impact navy thru other theaters (great cruiser for aa, great t2 fighter, great hover, great shields)
Cybran is the brute force frigate that forces you to engage via Salem and the Salem also exists to provide the antitorps to protect your OP frigate. Basically an alternate of the UEF where the salem is the cooper and the frigate is the destro.