Is the crit rifle able to shoot on the move?
Maybe tweaking JLI that they only can snipe a model when out of cover would be better than a anytime sniper crit.
Any change made to JLI should be reflected somehow to pathfinders tho
The two units have very little in common now.
Almost all small arms are 50% less accurate versus a unit in cover. Heavy cover provides 50% damage reduction on top of that. This makes a squad in heavy cover about four times more durable than it is out of cover.
The damage on the JLI crit rifle is low, but it has 90% accuracy vs cover instead of 50%. It also has chance to instakill models below 75% health. These two bonuses combined heavily mitigate the benefit the enemy gets from cover.
Pathfinders don't have that accuracy bonus and can only crit models below 40% health. They're more of a force multiplier unit: they can do a lot of damage if a Rifleman squad is around to set up the crits for them, but they're pretty weak on their own.