Unit Size restrictions?

[General Strike]

So, on the datasheets they allow for increasing unit size in groups, which increases the power level. I was looking for the part in the rule book that says we can take extra models up to the max using points. Like if I bring a tactical squad, it starts at 5 and I can add more up to 10. I'm looking for where it says I can bring 1 or 2 more tactical marines, and not just the 5 tacticals to make it 10 like the datasheet.

[Halandaar]

So, on the datasheets they allow for increasing unit size in groups, which increases the power level. I was looking for the part in the rule book that says we can take extra models up to the max using points. Like if I bring a tactical squad, it starts at 5 and I can add more up to 10. I'm looking for where it says I can bring 1 or 2 more tactical marines, and not just the 5 tacticals to make it 10 like the datasheet.

 

Actually, it is on the datasheet; it says the unit may "include UP TO 5 additional Space Marines", so you are free to add 1 or 2 if you like. 

[OutlawSixActual]

Just remember that if you are playing power levels, you would still have to pay the power levels as if you added a full five.