Thinking about CC or TT on the T3 scout, here's the deal:
TT - 10% accuract, 15% crit chance, 25% crit magnitude, 8% evasion, affects secondaries (irrelevant).
CC - 20% accuracy, 7% crit chance, weapon power regen (1.25/second).
So, for 100% accuracy on a target, TT offers an 11.25% DPS increase, while CC offers a 3.5% DPS increase because CC's main attribute is the accuracy. However, this evens out at 17% evasion - meaning that for any target that has more evasion than that against you (depending on range, blaster, capacitor and deflection of course) CC beats TT on average.
For LC, 100% accuracy is achieved at 3570m (damage/freq. cap.) or 3910m (range cap.).
For quads, 100% accuracy is achieved at 3360m (damage/freq. cap.) or 3680m (range cap.).
So, for the T3 scout (no secondaries so to speak of) CC is way better offensively. The only sacrifice is 8% evasion, and I think that with disto and RI it can be bypassed.