Guys Ive branded a Warchief but he got attacked and killed by the Urks!
What am I missing?
It wasnt a powerstruggle where I need to protect him. He just got attacked by a lot of them
Edit: Bump
If you are in combat around your branded guys, they will usually automatically join in to help out. Maybe that happened?
This game is simply too hard. Any advice? Even the regular orc enemies kill me in a few hits. I can't even hurt Captains, and it's just so frustrating that I keep dieing.
Do your homework. Know what a given captain's weaknesses are before you go after them. Many of them (particularly in the early game) are vulnerable to some type of attack... it will kill them instantly. That might be a bow shot to the head, or a stealth kill, or a combat execution move, or a beast attack, or grappling. Maybe he's afraid of something and will just run away (vulnerably) when he sees it. Get intel on the captain first, so you know what to do.
If just basic combat is too hard for you, find a couple small groups and practice. Get the timing down. If you are playing on PC and have poor framerate, turn down your settings because bad framerate makes it harder to time your counters. Like Raptor said, the combat is going to punish you for button mashing. Be ready to counter when you see that prompt. Press the attack button roughly as you connect with your last attack to do extra damage (rather than just mashing attack repeatedly). Ideally, in most combat situations you should be getting your combat meter to flash red and your sword to glow so you can use one of the chord attacks (they are skill unlocks, so you might not have any yet).
This game is one where there are a lot of opportunities if you are paying attention. Use your wraith vision to find captains before they find you. Use your wraith vision to find environmental combat opportunities that you can shoot with your bow (some require a skill upgrade). Use your stealth capabilities. Use the beasts. If some particular approach fails you, try something new.