Has anyone seen the new Top Gun movie?

Spoilers ahead if you haven’t seen it, I have a problem with their mission.
A group of Fighter jets are going in to take out weapons grade Nuke plant, fine they have to fly low level to avoid enemy radar ok, a battleship is to send a bunch of Tomahawk missiles in to take out a enemy airfield to make it easier for the attack team.
Now what I have a problem with is there are about 7 S.A.M sites garding the air space around this plant as well, the attack team have to dodge these missiles on their way out, what I don’t get is why wouldn’t the battleship throw a few Tomahawks at these sites as well as the enemy airfield ?
I couldn’t find a reason in the movie why they couldn’t have done that, could someone tell me why they couldn’t have done that?