First, I really dont like to open so many posts but I have been searching without results.
A tactical squad has 3 models and a guardsmen squad has 6 units. Supposing that there is a cover for only three models, the tactical squad will be on full cover while if the guardsmen want to cover only three models will cover? This means that even if you are at cover there are other three models (or 6 or 9 in an upgraded squad). So basically my question is that is cover is useless with squads with a lot of models. Even if three models are at cover the other 3 are receiving full damage but the tac squad would be at full cover. This makes durable infantry even more durable while weak infantry even weaker.
Am I right?