Jason Liang
Arcane
And yes, I agree with escort missions being shit all-round. In fact, someone explained this in better imagery than I ever could:
http://allthetropes.wikia.com/wiki/Escort_Mission
allthetropes wiki said:The Escort Mission. The bane of gamers everywhere, alongside the Timed Mission and Luck-Based Mission.
Escort Missions are just that: you have to babysit an NPC, keeping them alive through one or more challenges without getting killed or seriously hurt, or sometimes even touched. This wouldn't be so bad, except that 98% of the time, the NPC you have to protect is gifted with all the common sense of an inbred, suicidal gerbil. They die from minimal damage, run ahead into danger before you can clear it, step into your line of fire, and otherwise act Too Dumb to Live. Even worse, escort missions frequently have long, boring stretches of time where nothing happens in between the NPC trying their damnedest to get skewered. Missions not formally meant to be Escort Missions sometimes become them, when you're saddled with aggressive but stupid NPCs whose survival is one of your victory conditions. Either way they're a sure way to ramp up the frustration level and make a game Nintendo Hard.
http://allthetropes.wikia.com/wiki/Timed_Mission
The Timed Mission completes the unholy gameplay trinity alongside the Luck-Based Mission and Escort Mission, and things can get very bad when any two (or all three) of these are combined. The logical inverse of this trope is the Hold the Line mission, in which the clock is on your side and your objective is to survive until the timer expires.
http://allthetropes.wikia.com/wiki/Luck-Based_Mission
"If no mistake have you made, yet losing you are... a different game you should play."
—Yoda, Star Wars: Shatterpoint
The Luck-Based Mission is a bane to many gamers because if luck is not with you, you'll lose. The worst examples are when skill is completely removed as a factor. Regarded as frustrating at best and often an infuriating stumbling point, the games that actually feature this as a requirement are thankfully few, but still, they're present. Save Scumming is a requirement.
A particularly repellent form of Luck-Based Mission is one where the game mocks you for failure. As if it's your fault that the Random Number God is displeased. Then again, inciting the Atomic F-Bomb tends to help a few types of people vent their frustration on anything other than an unrelenting computer. (Others threaten it with the junkyard.)
This trope is particularly vexing for speedrunners; gamers can pour as much practice as they want into perfecting skill-based portions of the game, but that won't stop their speedruns from being ruined by one bit of bad luck.