The biggest con of the Titan is that switching is build-unfriendly. It's a great torpedo boat in either science or tactical mode, a decent science spearhead in sci mode, and a mediocre destroyer in tac mode. The biggest pro is that you have access to a science spearhead and a tactical destroyer in one. Don't feel pigeon-holed into playing sci ships on sci caps and escorts on tac caps. Just to clarify, any captain career can fly any ship or play any role.
