Why Warspite normally carried Royal Marines

Did battleships such as HMS Warspite normally carry troops?

Royal Marines normally formed part of the crew and commonly manned a turret. Warspite's detachment had been removed, so its normal complement was not an available force at Narvik.

Capital ships normally carried Royal Marines as part of their crews, and Marines commonly manned one of the turrets. That explains the reference to troops aboard Warspite. Her detachment had been taken off, possibly to help form naval base units, although the reason is recalled uncertainly. The ship's normal complement therefore does not establish how many Marines were actually aboard at Narvik.