Nah, you're mixing roles there. Mixing is a bad plan, and it's one of the reasons why units such as the Seven Samurai aren't very good; if you take half Flamers and half Fusion Blasters, you will ALWAYS be wasting half the squad. Then again, if you take all Flamers, just how dead do you need something to be? Or ten Fusion Blasters - just how many AP1 hits do you need? Even then, it would be more beneficial to take two teams of three instead of one team of six - you have the same number of shots but can split fire and spread yourself out across the battleline.
Ergo I suggested 'Fireknives' - you have the potential to do damage to almost any vehicle with massed Strength 7 (or is it 8 for Missile Pods?), and can kill very heavily armoured units with massed AP 2, or put dents in hordes with 4 mid-strength shots per model.