Originally Posted by Emperorguard500
How often did an astartes (pre-heresy) see a primarch....was it a rare occasion that a noraml astartes would lay eyes on their primarch, or was it really the higher ups of the legion that got to interact with them
Some Space Marines, obviously quite a lot - be they First Captains, Lord Commanders, retinues, bodyguards or any other attendants.
Others, very rarely. Shiban Khan in Brotherhood of the Storm
, for example, recklessly abandons sensible combat doctrine whilst fighting on Chondax just to get to witness the Khagan in combat.
Remember, the Legions (with 1 or 2 exceptions) were scattered throughout various Expeditionary Fleets and only rarely mustered as a single, coherent Legion. Thus some Space Marines, Captains or Battle-Groups may well have been absent from the central command of their Legion for decades.