Here is a video posted on Facebook. It shows a 5 level course.

Stage 1: Crawl through sand and tunnel

Stage 2. Take cover and fire at target

Stage 3. Clear the room

Stage 4. Take cover behind vehicle

Stage 5. Reload weapon and clear targets

The Singapore Army uses the SAR21 bullpup. In the video it looks like there is some sort of blank firing adapter with some sort of laser system. Perhaps similar to the US MILES system. I am not sure how the targets are registering hits from a laser system but it seems to work.