Has anybody worked how the level score is calculated. What is the better tactic (for scores - not for anything else), (1)fill every space with a beginner unit, (2)have as few units as possible but level them up as far as possible, (3)have as few beginner units and as many advanced units, (4)pave as many spaces as possible, and fill them - has anybody else ever thought about this, or am I the only one who is finicky enough to even care?!?!?!?!