I realised yesterday, that you can still chain waypoints by pressing RT (similar to holding x in HW1).
Was this explained in the tutorials?
Could be that I missed it but it definitely deserves a wider introduction in the tutorials.
For me, this has been a huge complaint since the beta - multiple waypoints make scouting sooo much easier. 
There are a few functions when you hold RT…
A = add to selection
B = remove from selection
Forgot what Y does.
You can see these in the control settings.