and that is without S-G ammo?
If you were replying to my post, the ammo type doesn't matter. That only affects the indirect firing unit - the unit with the TAG designator won't be firing indirectly, but it can directly-fire SG LRMs of its own and ignore the target movement if it successfully TAGs. The TAG itself still has to take target movement into account, but you only need to make one roll for it - and if you have a lot of LRM launchers, well, you can always not fire them if the TAG misses and save ammo; TAG coming in the indirect phase means you'll be able to decide before weapons fire.
And like it's been said, TAG also works for artillery and other goodness, not just semiguided.