they are diffrent, for example i played vs alf at "a continent to explore" i rushed with 2 rax( i dont remember when i made 2 rax, mby 12x2 but skip 2 and make more) i made stronghold without mill (omg noob no mill 1111111!!!!ONEONE11) i make lvl 5 at hall (also dont remember when i made it with hall 12x2 only)
if i rush lvl 3 alf would crush me easy
if i made mill alf would crush me easy
if i rush 1 rax alf would crush me easy
etc
U need only basic strategy from axotolt form, if some1 understand this strategy he will be fine
Also u need know a bit map, what can do your opponent, if he cant close base he will rush 100% but u need scout, is it 1 rax rush or 2 or mby he will sit and tech for orges, if he can close base, maybe he went 2 hall/power/dual, he close base and made only troll, mby fake power and he is going rush