I think the ''betrayal on tank'' vs ''sabotage on mortars'' is a good thing in the game. If the heavy tanks power was reduced and every base just needed sabotage this game would be so boring. Now we have to think and to plan and to strategise. We/you/me have to actually think about what we take into battle - do we want a balance of strategies or do we choose a strategy and keep nexting til we find the right base?
Since when was any battle ever fought simply a case of walk in and win ???