Errors when extracting the TO:AoT v3.4 + v3.5 Fixed Download
If both the Zip and the 7-Zip version fail to extract, go to http://www.7-zip.org/ and download the latest version.

Mouse Cursor doesnt move after starting Tactical Ops
If your mouse cursor is stuck in the top left of the screen simply ALT-TAB out and back into the game.

File Mismatch Error when joining a Multiplayer Server
There is a very small chance that when you download custom files yourself or joined a multiplayer server and automaticly downloaded custom files and then try to join a server you might get kicked. This is either because you have incompatible file of the same name, or a custom file is not allowed by the other server. Easiest solution is to manually clean the Cache folders or alternatively reinstall the game.

Using ESE Anti Cheat for Tactical Ops v3.5
Install the ESESetup.exe for the ESE Account Manager. Make sure you have registered and obtained a ESE Keyfile and place it into your TO v3.5 System folder. Configure your TO v3.5 TacticalOps.exe installation folder in ESE. Then install the ESE Client Files and the ESE Renderers and configure themĀ from inside the ESE Account Manager. After all these steps you should be able to join ESE Servers. Also make sure to browse to the "System/TacticalOps.exe" file and not the Tactical Ops Quick Join.exe file when using the TO v3.4 + v3.5 fixed pack.

Installing Custom Files
When using custom files its always advised to make a separate installation for offline or lan use only.
.int and .u files -> TO-Version/System
.unr files -> TO-Version/Maps
.utx files -> TO-Version/Textures
.uax files -> TO-Version/Sounds
.umx files-> TO-Version/Music

Crashes, INI-Parser Kick or Netspeed Kick
Sometimes when you just joined a server you might get kicked or the game can simply crash between map loads. Simply restart the game and rejoin the server. If you have in TO:AoT v3.4 you have used ACE on a server, make sure you restart the game or wont be able to other servers afterwards. If you get kicked on v3.5 servers make sure ESE is activated and configured properly. If your Internet Connection is slow, or unstable set the connection speed lower in the settings menu. Options -> Preferences -> Network -> and change Internet Connection from LAN to Cable, xDSL or lower if the Netspeed Error still appears. (This might also be needed if you play on high ping servers)