A_Irish_Fella

Hello, this is my first post on here and im completely new to arma series having just bought arma 3. Im trying to download the All in terrain pack full 1.4.1 via A3 launcher but it is so so slow, so i want to try downloading from here. Is the latest AiA TP 2015-01-01 Full (6.4 GB) the same as the one in a3launcher? Its just a3 launcher is 8.5gb but the download on here is 6.4? Also when i download via this site am i good to go or do i need to download the hotfix and apply it then download the patch and apply it also? Thanks in advance for any help provided :)