However, when there is a large discrepancy between vigilance and ADVENT legion count, ADVENT will more aggressively summon offworld reinforcements via UFOs to boost their numbers. So, it's useful to do enough missions to slow the aliens' progress. The percentage increases the bigger the difference is. If the overall vigilance in the world is higher than the amount of ADVENT legions that exist in the world at any given time, then the aliens' progress on their main objective will be slowed by a percentage.
LouisdeFuines wrote:Ok, I understand, that succeeding in missions gives vigilance.Īnd skipping missions makes the aliens progress faster or just doesn`t slow them down? (the last part is important to me)