No. The Steam Workshop for Heliborne contains skins and missions, not progression unlocks. Any mod claiming to unlock all helicopters for multiplayer is a scam.

Change the values to match the maximum requirement for Tier IV aircraft. Save & Restart: Close the file and launch the game. 🚁 Unlockable Content Overview

: You earn points by completing missions, capturing bases, and destroying enemy positions. The Single-Player "Trap" : Standard offline single-player mode often does not grant XP