I think a great idea would be if the game would automatically generate a message if one of your clan mates was getting bone crushed. This message should show in clan chat only and could say something along the lines of :

"JimmyJamm is getting bone crushed by SumDumbGuy at winery crossroads."

This could alleviate alot of the searching to find someone that doesn't remember where they are int he event of an attack.