Does anyone know of any other options, besides Call to Active Duty, to transition from National Guard to active duty?

Call to active duty is your best option at this time. We have had about 10 officers in the last 12 months coming in under this program to Italy. My only recommendation is that upon reentry to active duty, you ensure that an Statement of Serivice is done and all prior service is accounted for. Many officers are told to wait until you report to their duty station, but that is causing delay on pay and entitlements.

To go regular army the call to active duty on the HRC site is the best route.

To get called up to serve active time you have more options.

Tour of Duty
Mobcop.army.mil

Personnel Force Innovation
PFI.DOD.MIL

Occasional one-time tour (OTOT)
Your state will have a site as well as NGB

Good Luck

There are MOB opportunities on the Call of Duty web site. For my last deployment, there were all sorts of NG carryovers from the last unit we replaced. I think it's fair to say this happens at a lot of units in theater, since there's always people who drop out at premob, or in theater for every reason. I'm sure there is some guy who doesn't want to deploy that would gladly give up their slot. Hope that helps.