The upgrade would make laser charged this is done by rightclicking for long time after that shoot with z+rightclick

For 5 seconds 12 hp damage

For 10 seconds 39 hp damage

For 20 seconds 63 hp damage

For 30 seconds 127 hp damage

Additional context
After discharging the laser the cooldown will be there due to overheating
Eg. for 5 s laser 30 s
For 10s 5 minutes
For 20s 10 minutes
For 30s laser =25 minutes
There should be laser reflecting armour upgrade which would reflecting the laser towards shooter, damaging the shooter
This would make the laser balanced in terms of 'OP'ness

Technocrats can absorb the laser (has special armour)to heal themselves thus cancelling the benefit of using laser against it
When it has forcefield activates the technocrats are vulnerable to laser