We rapidly approach a conclusion
The crew for the Cavalry carrier are complete
As can be seen, they wouldn't fit with the seat back in position, that only left room for two figures.
Easy solution, take that off and make a new one attached to the figures themselves. Also, needed to take some off their feet for them to fit in the narrow gap
The near-side right-hand foremost has no right arm, as yet, as he's going to be leaning on the panel behind the driver. The corporal is guiding the way from the back-seat!