by the way...
A BRV fighter optimized for pure survival, seems most often sighted as unkillable ... not necessarily better as a defender...just better at being last man... and less likely to be having his friends with him at the end of the fight ...
And such is viewed incorrectly. The BRV Fighter is 95% as sticky as the non-BRV Fighter and uses less healing resources, hence, giving more healing resources to the group which in turn increases the survivability of the group, not decreasing it. This is a common misconception.