This have mixed response , it really could be either depending on a few factors which cannot be revealed.

Ministry tends to have MX Schemes, but DXO can be also hires at MINDEF.

Cant share the answer, my best bet is for you to clarify with HR when you are selected. Since the selection process is so tedious and not easily being offered, no point guessing it is MX or DX, it doesnt even matter when you are not selected..