One thing that works really well when you see a particular legion has locked onto your base, to have your entire legion go through the battle tab targeting members of that legion. Containment missiles, debuffs, attacks. Hit random planets that belong to them. This will only be effective if you have a lot of people on during an attack, and those people can actually see members of the attacking legion.
Put the pressure on. I can say from experience that it does work really well to have your legion disable 30+ people in under 3 minutes.

ahh... it would be nice if, when a legion locks onto your base, the players in your battle tab are replaced with all of the current attackers... or at least the ones closest to your strength (not necessarily your rank)


.....allow the defending players to get RED badges only during this counter-attack
(don't like the idea of defenders getting silvers... silvers are for disabling bases...)
(also don't like the idea of a gold badge for defending... some legions will almost never see those because nobody wants to attack them)
red badges are reasonable because that'll allow the defending legion more opportunities to scan later, hoping to find the base of the legion that attacked them...

the other day when AU's base was locked, i had three ships from the attacking legion on my BT..... and another 2 the following day. are we more likely to see them while they are locked?