It's not rare to see a player, even at the highest level, fail to notice a raid happening at his own TC when he is fighting fiercely at the frontier. I think the reason is that the player might have misunderstood the under-attack sound, and confuse the attack on his army with the raid on his villagers. Therefore I am proposing to make 3 different levels of under-attack sounds:
1. your buildings, including walls, are under attack. This is the least concerning one because maybe your enemy is just knocking at your walls and you usually can't ask your buildings to fight back
2. your military units are under attack. This requires your immediate attention since intensive micro may be needed to minimize the casualties.
3. your villagers are under attack. This is the most serious alert for obvious reasons.
WDYT?
1. your buildings, including walls, are under attack. This is the least concerning one because maybe your enemy is just knocking at your walls and you usually can't ask your buildings to fight back
2. your military units are under attack. This requires your immediate attention since intensive micro may be needed to minimize the casualties.
3. your villagers are under attack. This is the most serious alert for obvious reasons.
WDYT?