If you have them unlocked, you can select the Missions tab and just click on the Mission to start it!
You need to Starfight for about a day to unlock Missions
well all of my progress was lost, I was in endgame and don't want have to farm for days just to get close to where I was before again, great game while I played it though.
I am unsure about the scaling with the fire stage, I can kill everything in the first stage in a single run no problem, and the enemies in the fire stage pose not much of a problem either, but the water spouts kill me everytime. I'm at over 30% resistance but it still does 10's of thousands of damage to me per second to where I can't even make it to 13k purely because of it, and since I can only kill one titan per run the game has gone to a crawl since I have to wait days just to upgrade fire resistance a single time more
You are at the current End Game. Until further content updates are added Goliath zone will be hard (not impossible). Focus on Templar levels the health will do more than the Fire resist at this point.
Still seems to be luck based in late game. I can one shot basically anything but I will still die to a stray bullet thousands of levels before i should
Only the one essence can do it, and this essence is...