Mass Effect 3's fetch quests are the worst.

RANDOM PERSON ON SPACE-PHONE: "If only we had the [Relic Of Place], we could [Do Vaguely Helpful Thing]"
*Alliance Commander Shepard, Spectre, Hero of the Citadel and the galaxy's best hope of survival, overhears*
*Flies the Normandy - the most advanced ship in the Alliance navy - tens of thousands of light years to enemy occupied space*
*Plays even-more-tedious-than-Mass-Effect-2's scanning minigame*
*Finds Relic of Place*
*Flies tens of thousands of light years back to the Citadel*
SHEPARD: "Here you go."
RANDOM PERSON ON SPACE-PHONE: "Thanks!"

Mass Effect 3 also has some really crappy arena based side missions which only exist to say: "Hey, look at our multiplayer maps! Wouldn't you love to play these in multiplayer?"

Finally, the game is 4 years old now. The multiplayer community is not exactly giant and I don't really want to play the multiplayer anymore. But not doing so adversely affects my single player campaign. So that's fun.