https://www.sosialbook.com/blogs/3307/Arc-Raiders-Upgrade-system

In ARC Raiders, risk and reward go hand-in-hand — and nowhere is that more obvious than the Locked Gate event. This high-stakes, objective-driven map modifier transforms a normal raid on The Blue Gate into a race to unlock hidden underground riches.

What Is the Locked Gate Event?

The Locked Gate event is a rare map modifier that appears only on the Blue Gate map. When active, it places a massive sealed gate at the Checkpoint area that blocks access to the underground tunnels and lower parts of the map. Raiders must work — whether cooperatively or competitively — to gather the items needed to open it.

https://www.chattingliv.com/blogs/5904/Arc-Raiders-upgrade-system

Unlike normal raids, Locked Gate matches: Last up to 40 minutes Disable Raider Hatches and reduce Return Points Increase progression rewards (e.g., doubled Trials progression) All of which make planning and execution more strategic. How to Unlock the Gate To open the Locked Gate and access the underground zone: 1. Collect Four Security Codes Four Security Codes spawn only during the Locked Gate event. They can appear in any container inside these specific zones: Raider’s Refuge Pilgrim’s Peak Reinforced Reception Ancient Fort There’s no fixed container — keep searching every loot stash until you find them. These codes are items you carry in your inventory. Other players can pick them up — and many run with them to bank for a future match instead of turning them in. 2. Enter the Codes at the Gate Control Room Once you’ve collected all four codes, head to the Gate Control Room near the Warehouse Complex. Inside you’ll find four terminals. Entering each corresponding code unlocks part of the system. When all four are entered, the massive Outer Gates open — granting access to the hidden tunnel network below. What’s Inside the Gate? After unlocking, Raiders can enter the underground tunnels — a treasure chest of high-value loot. Reports confirm that: Rare weapon blueprints, including the Bobcat SMG blueprint, are common here Containers often spawn better loot than aboveground Heavy ARC patrols and enemy raiders make this a high-risk, high-reward zone Risk vs Reward — and Community Reactions The Locked Gate event has become a contentious yet exciting part of ARC Raiders: Strategy and PvP Dynamics Because players share the objective, cooperation can emerge organically. Sometimes squads work together to find codes, while other times it’s a frantic PvP scramble with teams hunting key carriers or camping the control room. Gameplay Balance Critiques Some in the community feel the event can be buggy or unrewarding — for example, teams failing to open the gate if someone exfiltrates with a code, or the loot inside not always feeling worth the effort. Still, other players praise the event for its unique tension and high rewards — especially when rare blueprints show up. Tips for Success Here are a few strategic pointers if you encounter Locked Gate: Communicate early: Let teammates know which codes you have. Avoid early extraction with codes: If you want the gate open this round, bring codes straight to the control room. Watch for ambushes: Gate Control Rooms and code locations are hotspots for PvP. Prepare for dangers: Landmines and ARC units often defend key code zones. Final Thoughts The Locked Gate event in ARC Raiders is more than just a locked door — it’s a shared puzzle, a PvPvE battle, and a chance for some of the game’s best loot. While its rarity and complexity can make it elusive, mastering Locked Gate runs offers both satisfying teamwork and valuable rewards.