Originally Posted by
ElectricPaladin
The configurations that most appeal to me are dual burst cannons and dual plasma rifles. These configurations are both set to get around the factor that limits the effectiveness of crisis teams: low ROF. Consider that a squad of four crisis suits (a team of three and a commander), each with dual, rather than twin-linked, plasma rifles is putting out eight 6/2 shots at 24'' and sixteen at 12''. Assuming that your target is MEQs (or even TEQs), with twin-linked weapons a squad like that would be forced to play a dangerous game of harassment, jumping in and out of cover and out from behind blocking terrain. With dual weapons, they can jump in close and stand a good chance of wiping them out.
Let's get math-hammery. I don't think that math-hammer is the solution to all problems, but it does make the utility of dual over twin-linked weapons clear.
Against MEQs:
• 8 shots at BS 5 (because these are the Tau; you're a chump if you ever shoot a hard target at BS 3) = 7 hits
• 7 hits = 6 wounds
• 6 wounds = 6 dead (cover could be a factor if your markerlight support fails; again, when you play Tau, if you let them take cover saves, you've done something wrong).
That's enough to decimate a tac squad or some pesky sternguard. Two rounds of this - hiding behind terrain to avoid reprisal - will completely wipe them out. This configuration would do about as well against TEQs - 5 dead instead of 6, 3 if you're dealing with 3++ TEQs.
Given that multi-trackers now come standard, I could also see this as an excuse to include a flamer on each XV8. That's potentially as many as 4d3 autohits in Overwatch if the squad is charged.
That said, dual weapon suits are very expensive. We're talking about 120 points a suit. Whether 360, plus whatever the commander costs, is worth it to kill a ten-man squad of MEQs or TEQs in two turns is worth it depends on the rest of your army and your personal tactical style.
Despite the cost, however, this may spell the end of twin-linking. Twin-linking on crisis suits has always been a weird choice. The advantage of twin-linking is reliability. However, the Tau don't really need to make their shooting more reliable with twin-linking; that's what markerlights are for. What you usually do with twin-linking is reduce your army's reliance on markerlights so you can save them for the units that always need them, like massed fire warrior shooting, removing cover for your XV88s, or making your hammerhead's single railgun shot really, really count. The thing is that, as troubleshooters intended to go after hard targets - XV8s are almost always putting your firepower where it really needs to be... which is exactly where you want to use your markerlights, anyway.