As mentioned, weapon jams are death sentences. Specifically during the Elevator Defense sequence (roughly the 1-hour mark), your weapon will automatically degrade twice as fast. Swap to your sidearm every 15 seconds to let the primary weapon cool down.
Have you found the secret ending in MetF Chapter 3? Let us know in the comments below, and check back for our deep dive into MetF Chapter 4: The Cog-Mother’s Vengeance. MetF Chapter 3
9.5/10 Completion Time: 2–3 hours (first playthrough) / 45 minutes (speedrun) Required for 100%: Yes. You cannot skip Chapter 3 to reach the endgame. As mentioned, weapon jams are death sentences