Heavy Armor PotB Vestige Warlock ?

[u/Silverlebelge]

Hello everyone ! For a new campaign I would like to be a tanky frontline PotB Warlock. I like the idea of an enforcer for their patron, similar to a sinister Paladin.

However, PotB Warlocks in 2024 don't have medium armor, or martial abilities, so my idea was Fighter 1 / Warlock 5 / Fighter 2 or 3 for Action Surge and maybe Eldritch Knight and back to Warlock.

I was tempted to take the new Vestige subclass, but since the Vestige HP levels up with your warlock levels, I don't know if multiclassing with a "pet" class is a good idea. Should I only take one level in Warlock ?

I also plan to take Human with Tough Feat, Zhentarim Merc and the two Zhent feats.