No VPN, Crash free lobbies
TLDR: Firewall blocking all Vultr servers that are affected by DDoS, and forcing game to use only on Google Cloud servers (there is few left). Search will be longer. ~3-4 minutes in EU at 8PM local. IDK how it will work if more players use this method.
Download simplewall-3.8.7-setup.exe ( https://github.com/henrypp/simplewall/releases/tag/v.3.8.7 ) & install
Download text file and save to desktop: https://pastebin.com/raw/i8FsnALH
Open text file in notepad. Use "replace all" (CTRL + H) to change install directory of your DMZ
Example: > apps="C:\games\call of duty modern warfare ii_retail_\cod22-cod.exe"
into for example
> apps="C:\Program Files (x86)\Steam\steamapps\common\call of duty modern warfare ii_retail_\cod22-cod.exe"
Import file in simple wall (File - Import)
Enable filters (Button on top left in simplewall window), in popups allow any other apps that need internet access (simplewall is replacing Windows Firewall)
Here is example of GUI settings: https://i.imgur.com/bi1CqM6.png - leave "No crash" rules unchecked.
Restart game after any changes in Simplewall (game checks for servers on launch)
*) I tested it for the last 2 days on the EU server and it didn't crash once. There are a lot of cheaters.
**) You can use the IPs in any firewall; just get them from a text file. Simplewall is just easier to import/export than the default Windows firewall.
***) For tests you can run resource monitor in background, select cod22-cod.exe and if server crashes check for current IP of COD server you are playing on. Ctrl+A then Ctrl+C and DM me a IP list. https://i.imgur.com/0cir4T5.png
****) This is the same method used for region geoblock ( https://old.reddit.com/r/DMZ/comments/1bg3881/deleted_by_user/kv4qfdc/ ) just with updated IP list.