To be honest, if you really want to do something "tactical" then you will have to be prepared to invest in a lot of time and be fully committed. Once you complete the LO1, you qualify to do individual courses, such as Carbine 1,2,3 - Pistol 1,2,3 - Fighting around vehicles 1,2,3. etc and you can then also go for LO2.

As SSP stated, with them also, each unit standard builds the foundation for the next. You will learn a lot, and it will be a very humble experience.