The range is six metres, the target unobstructed. He can draw, aim and fire in less than a second. Luciel wears his boltgun, an oiled black pit bull of a weapon, in his thigh holster. Adrenaline spikes to heighten an already formidable reaction time. Transhuman responses are already there, unbidden. For a nanosecond, the figure registers to Luciel as an unknown, a threat. 'The Word Bearer is almost unrecognisable. Relevant to the combat and reaction speed of characters.

A Space Marine sees an unrecognized foe, and in under a nanosecond, plays out and analyzes the situation and its consequences before drawing his bolter.''I have little idea,' Cestus confessed, staring into the viewscreen, analysing and appraising tactical protocols in nanoseconds as he considered Kaminska's question.'

Speed discussio Chaos Gods tier discussio Daemon Primarch discussio*A Space Marine analyzing multiple advanced tactical protocols within nanoseconds.

Note: Here are several discussion relevant to these quotes.

Warhammer space marine quotes