Arknights: Endfield imposes early level caps on operators, initially at level 20 and later at level 40, making the collection of specific promotion materials crucial for progression. The two primary resources required are Pink Boletes for E1 promotion and Red Boletes for E2 promotion. This guide details their locations, farming strategies, and ways to optimize collection for maximum efficiency.

Pink Boletes: Key to E1 Promotion
Pink Boletes are required to promote each operator to E1, with three units per character needed. Players can acquire them through multiple methods:

Rare Gathering Sites:

• The Hub: Two Rare Growths are just south of the Old Power Plant, while a third is in Rockhill Passage, accessible only after completing a main mission.
• Valley Pass: One Rare Growth is located in the Arsenal, southwest of Valley Transfer.
• Originium Science Park: Two Rare Growths exist—one at the southeast corner of The Depression and another north of Cliffside Trail.
• Growth Chamber Cultivation: Pink Boletes can also be produced via Mycelia cultivation at OMV Dijiang.

Each site respawns Pink Boletes daily, with spawn rates and maximum caps determined by your Exploration Level. To farm efficiently, plan routes that allow collection from multiple locations in a single day, and track respawn times to maximize yield.

Red Boletes: Essential for E2 Promotion
Red Boletes are required to promote operators to E2, with five units per character. They can be obtained from:

Rare Gathering Sites:

• Origin Lodespring: Three Rare Growths are available—one at the southern end of the Logistics Area, one at the eastern end of Blightcliff Observation Post, and a third southwest of Mountain Passage (requires explosives to reach).
• Power Plateau: One Rare Growth is located in the northern section of the Old Dorms.
• Growth Chamber Cultivation: Red Boletes can also be grown via Mycelia cultivation at OMV Dijiang.

Red Boletes also respawn daily, and spawn limits depend on Exploration Level. Prioritizing Rare Growth sites in combination with Growth Chamber cultivation ensures a steady supply for E2 promotions.

Farming Strategies and Optimization

• Prioritize Rare Growth Locations: Focus on high-yield locations first and complete required main missions to unlock access to all Pink Bolete sites.
• Combine Daily Farming with Growth Chamber: Cultivating Boletes while farming reduces downtime and ensures resources accumulate consistently.
• Track Exploration Level: Higher Exploration Levels increase spawn caps and respawn efficiency, making your farming more productive.
• Plan Multi-Location Routes: Collect from multiple sites in a single session to minimize travel time and maximize efficiency.

Alternative Options for Faster Progression
For players looking to accelerate promotions or access higher-level operators immediately, purchasing Arknights: Endfield Accounts from z2u.com is an effective solution. Accounts may include pre-promoted operators, accumulated Boletes, and other resources that save hours of farming, allowing players to focus on combat and high-level content.

Conclusion
Mastering Pink and Red Bolete collection is essential to overcoming level caps and optimizing operator performance in Arknights: Endfield. By efficiently combining Rare Gathering sites, Growth Chamber cultivation, and route planning, players can secure all necessary promotion materials. For those seeking faster progression, acquiring accounts through trusted marketplaces such as z2u.com provides immediate access to advanced operators and resources, offering a flexible way to enhance the gaming experience.