No idea if it mention it before but if we want to have a more intense battle ady should take care to add some more lasers in the battle. Not necessary to show the source. For example in the side AT-AT shots it will be cool to see random lasers hit or mis hit the Walkers. Like in ANH when the speeders making their passes the guns will stop and again the towers (not visible) fire again.
Impfighter: i will make those some moments later ;)
-Angel