Managing carry weight is one of the biggest challenges in Fallout 76, whether you’re a brand-new Vault Dweller or a seasoned Appalachian veteran. Weapons, armor, junk, aid items, and crafting materials add up fast, and constantly hitting your weight limit can slow down your progress.

What many players don’t realize is that there’s a hidden backpack upgrade in Fallout 76 that can increase your carry weight by up to 120 lbs. While it does require some grinding, the payoff is absolutely worth it. This guide breaks down exactly how to unlock the Sout Backpack and upgrade it to maximum capacity.

Step 1: Start the Order of the Tadpole Quest

To begin, travel to the Grafton Train Station. Inside the station, look for a wall covered in posters and interact with the Pioneer Scouts poster. Reading it will start the quest “Order of the Tadpole.”

Once activated, head to the Pioneer Scout Camp and speak with the Scout Leader. At this point, the quest can feel confusing because multiple objectives and a hidden miscellaneous quest appear. To stay organized, track:

- Order of the Tadpole (Main Quest)
- Find Scout Leaders Treadly and Pompy (Misc Quest)

Step 2: Complete the Four Tadpole Requirements

To finish the Order of the Tadpole quest, you must complete the following objectives:

Revive an Ally

You only need to revive one player. This can be:

- A friend
- A random player at a public event
- Someone who goes down during events like Encryptid or Daily Ops

This is one of the easiest steps.

Clean Up the Kiddie Corner Cabins (Operation Tidy)

Head to Kiddie Corner Cabins and speak with Scout Leader Pompy. Track the daily quest Operation Tidy, collect toxic waste from the marked locations, and deposit it into the blue barrels near Pompy.

Control Pests at Dolly Sods (Stings and Things)

Travel to Dolly Sods Wilderness and talk to Scout Leader Treadly. Track the Stings and Things daily quest.

You’ll need to collect five different bug parts. Fortunately:

- All required insects spawn around Dolly Sods
- Enemies are weak and easy to kill
- Map markers help locate missing items

Return the bug parts to complete the quest.

Earn Three Tadpole Challenge Badges

Open your Challenges → Appalachia → Tadpole Challenges and complete any three. The easiest options are:

- Archer
- Athlete
- Medic

These challenges include crafting items, completing races, using healing items, and killing enemies. Each challenge also includes a short exam, which must be completed at the Pioneer Scout Camp terminal.

Once all three exams are passed, talk to the Scout Leader to finish the quest.

Step 3: Claim the Scout Backpack (+60 Carry Weight)

Completing the Order of the Tadpole rewards you with the Scout Backpack, which immediately grants +60 lbs carry weight.

This alone is a massive improvement—but you can push it even further.

Step 4: Upgrade to the High-Capacity Backpack Mod (+120 Carry Weight)

At the center of the Pioneer Scout Camp, find the Pawsum Vending Machine. Here, you can purchase the High-Capacity Backpack Mod.

Important details:

- Costs 8 Possum Scout Badges
- Adds +60 carry weight when applied to a Level 50 backpack
- Combined with the base backpack = +120 lbs total

How to Get Possum Scout Badges

Possum badges are harder to earn, but there are three reliable methods:

1. Daily Scout Quests

  - Operation Tidy
  - Stings and Things
    (Small chance to reward a Possum badge)

2. Campfire Tales Public Event

  - Random chance for Possum badge upon completion

3. Possum Challenges

  - Found under the Challenges menu
  - Longer and more difficult than Tadpole challenges
  - Best long-term method for consistent progress

Keep grinding these activities until you earn 8 Possum badges, then purchase and apply the mod.

Final Thoughts: Is the 120 lb Backpack Worth It?

Absolutely. While unlocking the full 120 lb carry weight backpack takes time, it’s one of the most impactful quality-of-life upgrades in Fallout 76. Less fast traveling, fewer stash trips, and more freedom to loot and explore make the grind well worth it.