Last night we had a typical example of an invasion done right. Lots of death and wiping against the huge army at first, then slowly gaining the upper hand and whittling the army down, and then after the last soldier falls the appearance and nuking down of the boss (Akilia in this case). This is roughly the same pattern that most successful invasions go. So this suggestion isn't specifically about last night but about invasions in general.
I think that the last part, the nuking down of the boss, could do with a little excitement. These bosses usually have so much health that it takes the whole army of 50ish players several minutes to nuke him/her/it down, yet their attack is usually a normal ~2000 damage melee that isn't a threat to anyone with so many healing as there is flying around at this point. This makes the boss a bit lopsided in how powerful they are, and is also a bit of an anticlimax after fighting the army of mooks (which usually involves many player deaths).
I think that the last part, the nuking down of the boss, could do with a little excitement. These bosses usually have so much health that it takes the whole army of 50ish players several minutes to nuke him/her/it down, yet their attack is usually a normal ~2000 damage melee that isn't a threat to anyone with so many healing as there is flying around at this point. This makes the boss a bit lopsided in how powerful they are, and is also a bit of an anticlimax after fighting the army of mooks (which usually involves many player deaths).