Alternative Repair and Weapon Animations Replacer but nevermind I found what the problem was. It seems that Windows 8 does not come with .Net Framework 3.5, which is needed for the scripted installation, I downloaded an offline .Net installer and now its working. Thanks anyway.
Fomod scripted installer not working anymore after, I keep getting a message saying "may be a BAIN installer" , the only option i have is to install manually. This never happen to me before. Started after i changed to Windows 8.1, dont know if there is any relation to it.