What is a good build for a tactical odyssey cruiser. I was think of using all beams or beams
with some quantum torpedos.

Do you mean tactical captain in odyssey or another captain in a tactical odyssey?

Nevertheless, i will give you the build I would use as a standard bruiser-dps/healer hybrid. It works best with an engineering captain with RSF and MW to act as your under pressure powers.

eptw1 epts2 et3 es3
eptw1 epts2 auxtoSIF2
tt1 apd1
bfaw1
he1 tss2

As I say, the engineer captain powers compliment this build nicely, but if you're adapting it as a tactical captain, I would suggest perhaps dropping the aux to sif2 for an RSP2. Even though I despise the power and believe it is a very bad opportunity cost power, as a tac captain, you would have a very solid tank on this build, but would be lacking on the 'under extra pressure' activations that an engineer would have at their disposal.
8 beam arrays, and 100/50/25/25 power settings. You are cycling both copies of eptw and epts 100% uptime for buckets of extra power.

If you're pvping as a tac, get an escort, unless you're tac-cruiser is part of a specific team structure.

Bigred........jedi?????

Asking for a build? Not likely, Roach :p

True, but he has been absent ever since Swtor came out and may not have known the best route to go with an Odyssey.

I was hoping he had returned.

I prefer operations