Board Thread:Warhammer 40k General Discussion/@comment-25618639-20141206200938/@comment-8881468-20150103230614

you don't seem to get it.

every human has their own ways of dealing withg problems, these are based on available data, previous experience and so on and so forth.

the psycho indoctrination of each legion gives them their strategies.

but meh, let me give you a w40k example:  raven guard and brazen minotaurs  in "labyrinth of sorrows"  but chapters are aware of the codex

both chapters have their own preferences in tactics, both chapters work in the same area and have the same target. and based on their indoctrination, recruitment and homeworld they have different ways of fighting, which leads to both making choices that lead them to deaths and stand out and make them not mix well.

we could also go in and have a look at "helion rain" where the raven guard simply cannot fight their way and face an enemy as f.e. the ultramarines would do.

this is not about being aware of the tactics, it is about the fact that each legion has their modes of operation, that they will use, just like every human has his or her routines that are applied to every task, to every facet of action or thought. this has nothing to do with stress, this has to do with simple repetition of behavior over and over again.

this is true for f.e. your unconscious movement  to comb your hair, to your methods when approaching an unknown person or when working towards a goal. i will give you a simple example:  when writing an interpretation of a peom for school, i would normally go thorugh an analysis of the figures of speech, the rhyme scheme, metre and whatnot and then i would simply look at the publishing date, the author and draw lines to what i know about that person or the time the peom was written, writing my analysis and interpretation based on knowledge of history that I had, instead of going into personal conjecture and so on... ( that is f.e. why "romeo and juliet" to me is not about tragedy or romance but simply about civil order, which is actually achieved)

but meh, let's go into other details

all 20 legions fought in the GC with their respictive primarchs leading them: codex ultramarines, 2nd ed, pg. 7

both missing legions were annihilated before the year 100 of the great crusade:

source: horus rising, part 1, chapter 9  :; loken joined the GC prior to year 100 and has never heard of astartes fighting astartes

latest at monarchia ( 43 years before the heresy) both missing legions are not mentioned, as the book "first heretic" only mentions 18 legions   in chapter 10 magnus the red mentions that the emperor personally purged the 2 primarchs from history)

but hey let's quote some more from that book

---

Xaphen moved away from the others, coming to the pod etched with XI. Rather than peer into its depths, he looked over his shoulder at Argel Tal. ‘The eleventh primarch sleeps within this pod – still innocent, still pure. I ache to end this now,’ he confessed. Malnor chuckled from behind the Chaplain. ‘It would save us all a lot of effort, wouldn’t it?’ ‘And it would spare Aurelian from heartbreak.’ Xaphen traced his fingertips over the designating numeral. ‘I remember the devastation that wracked him after losing his second and eleventh brothers.’Argel Tal still hadn’t left Guilliman’s pod. ‘We do not know for certain if our actions here would change the future.’ ‘Are some chances not worth taking?’ asked the Chaplain. ‘Some are. This one is not.’ ‘But the Eleventh Legion—’ ‘Is expunged from Imperial record for good reason. As is the Second. I’m not saying I don’t feel temptation creeping over me, brother. A single sword thrust piercing that pod, and we’d unwrite a shameful future.’ Dagotal cleared his throat. ‘And deny the Ultramarines a significant boost in recruitment numbers.’ Xaphen regarded him with emotionless eyes, seeming to weigh the merit of such a thing. ‘What?’ Dagotal asked the others. ‘You were thinking it, too. It’s no secret.’ ‘Those are just rumours,’ Torgal grunted. The assault sergeant didn’t sound particularly certain. ‘Perhaps, perhaps not. The Thirteenth definitely swelled to eclipse all the other Legions around the time the Second and Eleventh were “forgotten” by Imperial archives.’ Enough of this insipid conjecture, came the disembodied voice again.