In theory, Steel Path multiplies the final armour, health and shields of enemies by 2.5 (+150%), however that's not true for shields. I have noticed this by accident in the simulacrum, so I ran more tests on different enemies and different levels, also on an actual mission, and every test showed without doubt that shields are exactly 2.5 times larger than expected, so 2.5² times non-Steel Path shields. This means that if a level 100 Crewman has 7682 shields, in steel path he has 48016 instead of