I've never been terribly interested in the Corvette, however I got one after the recent... sudden enrichment... due to passenger missions, I specced it for PvE and my layout is:
- 2x Huge Overcharged G5 Multicannon with Auto-Loader (why are people still using Incendiary?!?!) (their ammo last longer than other MCs, Hull Hardness means larger weapons are better for anti-hull duty);
- 1x Large Long Range G2 Pulse Laser;
- 2x Medium Long Range G2 Pulse Laser;
- 1x Small Long Range G2 Pulse Laser;
- 1x Small Overcharged G5 Multicannon (to apply Corrosive debuff).
Pulse Lasers means I can fire for a looooong time in 4-0-2 without running out of juice, and I went with Long Range both because most ships are faster than me, and because Pulse has a terribly falloff range of 0.5 Km. With most ships I just bring the shields down and then open up with the MCs, often together with the lasers. Works like a charm.