@RaVem
A few thoughts. If I incorrectly misstate something regarding ranger/soulbeast in particular please point it out.
General
Your armor target is pretty good. Remember, though, we are currently in a very strong condi meta, and armor doesn't do jack against condi. So, at this time, vitality is the more valuable defensive stat.
WvW is where certain foods shine. I'd recommend a stat/damage reduction food, such as Oysters with Pesto Sauce, or a straight up condi counter food, primarily Loaf of Saffron Bread.
Even on metabattle, power builds get all sorts of suggested damage increasing sigils, but my favorite is the Superior Sigil of Bloodlust. For the "on kill" proc sigils that give stat stacks remember to put a second one on an underwater weapon, so you don't lose your stack when you go for a swim.
Soulbeast-specific
For your runes, I can see where you're coming from. It wouldn't necessarily be my choice, but I like it. I do wonder if you would be better suited going for Live Fast over Unstoppable Union. You may also want to test Fresh Reinforcement when we have a boonshare herald and/or a frontline guard running.
I do like Leader of the Pack, but I'd strongly recommend trying Eternal Bond if we're having a rough night getting wiped in havoc.
I kept comparing your weapon choices against metabattle's soulbeast build, and I gotta say I like yours more for our purposes. Sword/axe isn't terrible, but I think I prefer the increased range pressure of axe/warhorn.
For pets, I recommend looking at: Brown Bear (great defensive kit), Fern Hound (a little more offensive than Bear but with resistance still), and Smokescale (knock-down, evade, and the pet can lay down a smoke field that you can blast with horn 5 for a bit of stealth).
For me, Signet of Renewal and Signet of Stone are interchangeable depending on the primary type of damage pressure you're seeing at the time.
Entangle is an excellent substitute for Rampage as One, especially in a havoc. Such an annoying skill.
If I think of anything else, I'll add it as an edit and tag you.
BTW, here is my starter frontline soulbeast build (should be appearing on the forums soon): LINK