I've found the Opticor to be a hilariously awesome stealth weapon when used with Loki, but I'm short on Catalysts right now, and it's being leveled up, so it's relatively weak, and can't kill some higher level enemies in a single blast.
I'm wondering, however, on what areas they drop from. Whoopee! I won't have to pay a fortune for a 100% status chance Tysis! So, the Fire and Cold Status Chance mods are now in Spy 2.0.