An option of selecting more than one person on a mission would be nice. Having to move 5 people to the endzone one by one whenever you're leaving is annoying.
I think the freezing only happens when loads of people are playing at the same time. I very rarely have problems with it, but when I do I wait a while and it works just fine when I return.
@Blue Beaver: in your screenshot the yellow 7 in (11,7) there are only 7 boxes around it left, and squares (12,8) and (13,8) need to be yellow as well.
That should get you started again :)
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