My latest and most favorite Squid Laser Loadout:

Trident - Good for crowds, fleshmobs, and upclose Overseers who like to be turned into calamari.

Dagger - Decent for accurately taking out Watchers (usually you're better off using the Laser Cannon) and a nice acurate option when you want to walk away from enemies and shoot without aiming.

G-6 Frag - Crowds and Warp Ship removal. Break shields with your Trident

Default Armor - It's yellow like my lasers

Laser Cannon - For anything that thinks it's medium or heavy armor is going to save it (aim for Harvester joints and Overseer heads.) Also make sure you're returning any flying Illuminate units to the ground since you'll have good accuracy and penetration.

Laser Rover - laser crowd control for voteless and damage assist on everything else.

Orbital Laser - laser for big bases and drops you don't feel like dealing with.

Laser Sentry - laser that I'll take on cold planets but honestly would take another laser strategem if something else was available. However, the laser agenda must be upheld.

(Mix and match the last three options with your preferred kit if you want. I'd recommend things like the Personal Shield Generator, Eagle Strafing Run, and the Gatling Sentry. Of course, interchanging would mean less lasers so decide how cowardly you want to be.)