Target designator alt functions

I was looking at the target designator on the interactive Halo 4 guide and I noticed it said the support fire it offers can come in a few different forms depending on area of operation or proximity of the target.

I was wondering what other types of support it could come in besides making stuff go boom.

I also wonder if it makes it so cheif gets ordnance in campaign or the S4’s can use it for the same reason in Spartan ops.

Just throwing this out there but anyone play Gears of War here???

Hammer of Dawn. That’s what I’m thinking.