hlc and marksmenship

By crusaders, in X-Wing Rules Questions

can you chance 1 hit to a crit when you shoot whit an hlc.

is marksmenship during the modify attack dice step or after this step?

13 minutes ago, crusaders said:

can you chance 1 hit to a crit when you shoot whit an hlc.

is marksmenship during the modify attack dice step or after this step?

Marksmanship occurs during the modify attack dice step, so the effect on the Heavy Laser Cannon upgrade would change the crit back into a hit after the modify attack dice step. The two upgrades don't play nicely together.