u/Merda_et_Musicus

I thought the way these challenges are listed in the game is bad, mostly because most of the intermediate rewards are complete garbage. Nobody is grinding for the next level to get 10 caps. If you are interested in the end challenge reward, this is how many times you need to complete each one.

Hurry up and kill those 376 stingwings, so you can get... 3 repair kits!

Challenge	Number of Completions	Rewards
Catch any Fish in a Sandstorm	169	9 Improved Bait, 5 Superb Bait, Player Title: Dusty
Catch any Fish in Burning Springs	1104	30 Common Bait, 5 Improved Bait, 5 Superb Bait
Collect Caps around Burning Springs	760	Perk Card Pack
Complete Grunt Hunts	486	2 Star Grunt Hunts, 3 Star Grunt Hunts, Rusted Car Table, Car Trunk Stash Box - Blue, Aerial Turbine
Complete Head Hunts	486	Scrap Car Sofa - Red, Headlight Sconce - Yellow, Taligate Bed - Teal, Highway Town Stool - Sign, Car Trunk Stash Box - Red
Complete the Event "Gearin' Up"	129	40 Caps, Title: Gearsmith
Complete the Event "Sinkhole Solutions"	129	40 Caps, Title: Exterminator
Cook a Meal that uses Prickeye	169	Pickled Prickeye Recipe, 20 Caps, Lunchbox, Player Title: Prickly
Cook a Meal that uses Radhog Meat	169	LunchBox, 20 Caps, Radhog Burnt Ends, Player Title: Hog Wild
Kill a Burning Springs Deathclaw	162	3 Deathclaw Egg Omelette, 20 Black Titanium Ore, 3 Deathclaw Steak, 20 Ultracite Ore**,Title: Buster**
Kill a Burning Springs Ogua	162	20 Bone Shards, 2 Bulk Leather, 10 Super Stimpacks, 20 Perk Coins, Title: Ogua
Kill a Burning Springs Radhog	1106	Lunchbox, 1 Bulk Leatherr, 3 Radhog Burnt Ends, 20 Adhesive, 3 Radhog Grilled Chops
Kill a Burning Springs Radscorpion	376	3 Radscorpion Steak, 2 Radscorpion Eggs, 3 Radscorpion Filet, 10 Radscorpion Stingers, 3 Scrap Box
Kill a Burning Springs Rust Raider	1106	10 Stimpacks, 2 Disease Cures, Scrap Kit, 2 Fusion Cores, Title: Remover
Kill a Burning Springs Stingwing	376	5 Stingwing Meat, 20 Acid, 3 Stingwing Stew, 10 Stingwing Barbs, 3 Repair Kits
Start Head Hunts	104	Riding Shotgun Chair, Head Hunt Flare, Car Saloon Doors, Headlight Sconce - Green, Car Trunk Stash Box - Green

If I've missed something, let me know and I'll try to fix it. I didn't include the less egregious challenges, because they mostly get completed just by playing through the Rust King story.

I've been hunting Spooky Scorched all week and, over the weekend, I got a little bored and made up a side-challenge. For an hour or so, I used whatever legendary weapon the last Spooky dropped. The only other rule was that I had to clear the entire location.

Scorched are squishy enough that you can kill them even with a very sub-optimal weapon. I had so much fun, and if you're looking for a little diversion, I can highly recommend it. (Favorite weapon of the challenge? A 2-shot 10mm. Runner up? Furious Rolling pin.)

Anybody else got a fun arbitrary challenge that you've set for yourself?