Download all required mods listed on the download page first. While you are waiting for the download I highly suggest reading the quickstart guide.
Extract the mod folder (Starting with @) into the Arma 3 installation folder. Some mods may come with Userconfig folder that you also want to copy into Arma 3 location
In some cases mods may already have a copy of @CBA_A3 included. Don't use that one because it is often outdated. Make sure you grab the CBA version listed on the download page
The Task force radio download comes looking similar to this
The contents of Arma 3 folder should be placed as per previous step
The Teamspeak 3 Client folder contains a folder called plugins, you need to move this to the installation location of Teamspeak.
It should look like the following picture
Once this is done go to Teamspeak and click Settings > Plugins or press Ctrl+Shift+P.
In the opened window click the checkbox in front of Task Force Arma 3 Radio
Using Task Force radio in-game is handled in the quickstart guide.
Start Arma 3 through Steam, which opens up the Arma 3 Launcher.
Go to the launcher options by selecting the cogwheel icon in the top right corner
Under Mod Management click the button at the right side and add your mod location (Arma 3 installation folder)
Click the Mods button and select the mods required. These can be different from the screenshot. Check the download page for required mods!
In the top right of the list select the Preset dropdown and save as TacBF
In the bottom left corner click the arrow at the right side of the play button and select TacBF
Connecting to the Teamspeak server before joining the game servers is recommended.
The official TacBF server info can be find on the Server info page