Yes, the six activations are very low and it was pointed out to him. We had by this point conceeded that the Tyranids were going to assault and he wanted the 'hard' units to be able to whether the storm - it never worked.
We are still looking for strategies that have a reasonable chance against this 'Nid assault. So far the best was the Marine game I posted where we fought to a draw.
Next time I will have a fully detailed batrep for you all so you can see the Tyranids in action. But it really is as simple as 'triple turn 1, assault turn 2' and ignore the incoming damage - you can afford to lose a formation.
No, the STs were not assaulting by this point but positioning for a counter assault - the situation was not right and the guard would probably have broken a formation but then would have died to the Tyranids - the IG player, at that time, did not think 'an eye for an eye' was worthwhile and, possibly to his error, bided his time.
He does not care about traps. You take out one swarm with a double activation - prep then assault. He ignores it and assaults you back with 2 formations. You take out one tyranid formation and lose two yourself ÂÂ
Of course, that is not to say that it would not work (done it myself with Marines), just that the situation the IG player found himself in was not optimal. The IG were caught flat footed and the game was lost at the end of turn 1 when the Tyranids were in position. Lessons were (hopefully) learned.