The R2 release of SCVMM isn't different enough to warrant it's own tag.<br>
Also, it's the 2008 R2 version, so the tag name isn't even accurate to start.

The [tag:scvmmr2] tag has more questions than [tag:scvmm], so I can't propose the synonym*.

*Yet another reason the whole 'synonym proposal' system is borked.