**Assault on the Control Room: keep the tank until the route actually ends**

**Assault on the Control Room: keep the tank until the route actually ends** Halo: Campaign Evolved. Conventional progression and collectible stops. This is a long mission with several bridges that look similar. The tank bridge, the paired footbridges, and the final bridge with parked Banshees are different landmarks. Keeping those straight matters more than memorizing a vague instruction to turn left after “the bridge.” **Opening bridges to the Scorpion** Fight out from the landing area and through the first interior rooms. On the initial exterior bridge, watch the far end for turrets and a sword Elite. In the following rooms, don't let the Grunts distract you from a cloaked Elite closing in. Reach the ground-level battle and the Marines. Vehicles and UNSC weapons are available, but watch for Wraith fire before settling into a stationary turret. Clear a workable path to the Scorpion and take it through the valley and tunnel route. Use the cannon to deal with threats before driving into their effective range. Keep enough space to maneuver, especially near slopes and edges. The tank is valuable transport here, not just a weapon to abandon after the first encounter. **IWHBYD and Tangent I** **IWHBYD:** cross the vehicle bridge over the icy chasm. On the far side, bring the Scorpion toward the wall on the left. Park it beneath the small opening in the ice and use it as a climbing platform to reach the skull. Clear the enemies first; trying to jump onto a tank while taking fire is needless frustration. Be careful with any flip prompt near the drop. Continue through the tunnel and up the steep icy approach into the next open battle. A Covenant dropship arrives in this area. **Tangent I:** enter the tower-like structure through one of its side doors. Take the internal upward route to its upper exterior balcony and check the end/corner for the terminal. Walking straight out through the opposite ground-level door misses it. Return to the Scorpion route afterward. **Angry and the paired bridges** Eventually the narrow cave makes you leave the Scorpion behind. Take useful ammunition before proceeding on foot. Beyond the cave, look for three Forerunner arches rather than immediately turning into the objective entrance on the right. **Angry** sits in the middle of the top of the rearmost, third arch. Climb the structure for the pickup, then return to the marked route. Continue through the interior rooms and lifts to the paired bridges. The route crosses one, goes through the adjoining interior, then returns across the other. Enemies can fire across the gap between them. A Hunter on the bridge you already crossed does not have to stand beside you to be dangerous. Sleeping Grunts give you opportunities to reduce a room quietly. Once the larger enemies are alert, stop treating stealth as protection and switch to cover and deliberate target selection. **Cowbell and the control-room approach** At the later bridge with the parked Banshees, you have reached the final collectible area, not another copy of the early bridge. **Cowbell:** look behind and beneath the parked Banshees for the roof of the structure below the bridge. Get onto that roof, then look underneath the bridge for the snowy rock bearing the skull. Identify the landing before jumping; this guide is not promising an arbitrary fall from anywhere along the bridge is survivable. Take the available route toward the control-room entrance, using a Banshee if you secure one. Clear the defenders and prepare before opening the large doors; do not stand in the doorway with an empty weapon when the next group appears. Push through to the control-room scene to finish. The four pickups are **IWHBYD, Tangent I, Angry, and Cowbell**. The old MCC Fog and Malfunction instructions do not apply here.