
Originally Posted by
MvS
This is true, however Astartes Chapters are supposed to be in near constant combat. Where other armed forces take leave or have at least some sort of downtime, Marines are supposed to actively seek out the most dangerous enemies imaginable and fight and fight and fight where others simply wouldn't or couldn't.
So yes, I take your point about their increased ability to recover and the medical technology available to them, but still, they must still have a relatively high attrition rate if they are operating on the scale that they are depicted as doing. Better organised Chapters would have to have at least some redundancy built into their replacement requirements, just in case the crapola really hits the fan with another Tyranid invasion or Black Crusade (or whatever else).