How to stop TF2 from crashing when attempting to play Invasion maps?

//ads -- adsterra.com -- native banner
?>
I can play and host other maps just fine, but whenever I try to play the 2015 Halloween event, Invasion, the map loads to about 80% and then hl2.exe
crashes.
I made sure to have enough free RAM and HDD space, and verified my cache.
64-bit Windows 7 Home Premium on Intel i5 750 @2.67GHz
NVIDIA GeForce GT 220 (driver 9.18.13.4181) OpenGL 3.3
Primary Display Resolution: 1680 x 1050
Primary VRAM: 1024 MB
RAM: 12279 MB
Total Hard Disk Space Available: 9,52 GB
Despite my solutions below, 2fort Invasion still crashes while sending client info with one loading bar left. Watergate, Probed, and Byre work.
Pictures about "How to stop TF2 from crashing when attempting to play Invasion maps?"



How do I stop TF2 from crashing?
Team Fortress 2 will also crash when a certain file is missing or damaged. To fix it we have to verify the integrity of the Team Fortress files from Steam. Wait for this process to be complete, and then relaunch your game.How do I play TF2 maps offline?
If you've ever spent money on TF2, you have a premium account. This includes purchasing the game before it was Free-to-Play, activating a retail version of the game, or making a purchase in the Mann Co. in-game store.Is TF2 no longer free?
Valve's ag\xe8d multiplayer game Team Fortress 2 has finally ended its longest stretch without an update.How to fix Steam games From Crashing - 7 Methods!
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Ketut Subiyanto, Tatiana Syrikova, Amina Filkins, Mikhail Nilov