u think defence is harder? each to their own i guess...depends on opponent doesnt it.
but in terms of artillery support, if ur a defender u dont need to prep fire, just set up TRP's where u think they will come. just buy half a dozen so u cover all possible avenues and u should be set.
i've got something to say about should be incorporated into CMx2 as well. instead of having spotters, why could ou have a limited ammount of fire missions, that can be called in by any platoon/company leader? (or any other leader, but i dont usually put higher than company at the front). as long as they have a radio, couldnt it be assumed they have training, or at least someone with em with training.