I GOT IT TO WORK!!!

The problem is, that the M119 and the MLRS both spawn with no ammo. When you spawn the MLRS or the M119 make sure to add the proper magazine.

In the Initialization field of the M119 or the MLRS insert: this addMagazine "ARTY_12Rnd_227mmHE_M270"; to add HE rounds to the MLRS

Just use:

this addMagazine "whatever ammo here";

Here is the list of ammo for the MLRS and M119 copy and paste the ammo inside the "Whatever ammo here"; (Leave quotations and semicolon)

M119:

HE Rounds: ARTY_30Rnd_105mmHE_M119

WP Rounds: ARTY_30Rnd_105mmWP_M119

SADARM Rounds: ARTY_30Rnd_105mmSADARM_M119

Laser Guided: ARTY_30Rnd_105mmLASER_M119

Smoke: ARTY_30Rnd_105mmSMOKE_M119

Flares: ARTY_30Rnd_105mmILLUM_M119

MLRS:

HE Rounds: ARTY_12Rnd_227mmHE_M270

So this means that the MLRS only fires HE rounds and the M119 fires everything. So if you want options in ordinance make sure you use the M119.

Also make sure that SecOp module is synced with the ARTY module, and make sure that the units are far enough away from the target.

Hope this fixes everyone's problem. :)