Need help with A3Launcher. Thread

First let me start by telling you that i am not a hardcore Arma player, though i always played it since Arma 2 i had A3 since launch and i tend to play it every once in a while.

My problem is installing mods via A3Launcher and try to play few weeks later to find everything corrupt, what's up with that? then when i verify it just redownloads the whole thing! i wouldn't complain if it was just small mods but it happens with the massive Arma All Terain Pack or whatever it's called.

What causes this? is it just mod updates and instead of updating the required files it redownloads the whole thing? and is there a workaround for that?

Moved to the more fitting game/mod tech support forum.

To answer your question, you could try downloading individual mods via the Armaholic website and their servers and activating them one-by-one using the file command option.