Is Corran going to be a glass cannon or late game tank.

- That determines if you're using R2D2

Do you want him to threaten Phantoms or not?

- That determines if you're using VI

Do you want to maximise his double tap?

- That determines if you're using FCS

If you take all 3 you're obviously over your 5 point limit so pick a role and flavour to taste.

Good analysis. The OP was of course limiting itself to 5 points, but I feel the big decision regarding Corran is whether to use PtL or VI. For me the use of R2D2 and FCS are a given if using Corran to begin with.