Im in the same boat. Im trying to work out a decent build that lets me use Rexler Brath and Echo together. Cheesy i know but the same thing happens every time. It boils down to taking 1 spare Tie Fighter.
Even dropping down to one or the other, the most effective option would just be a swarm of something far less useful.
Echo w/VI, ACD
Brath
OGP
7 points of upgrades. Easily a solid list (I run something similar with Fel instead of Echo) but it would be ideal with Vessery instead of Brath and get yourself two more points for something like FCS on Echo. That's a very good list.
I do kinda like that but i was put off by the naked shuttle. Its easy to forget that, besides the Agility the shuttle has some decent stats.
The obvious Temptation is a HLC on Brath but it may be better to add to the Shuttle for support. Ill have a think about that, thanks.
I really like my Tactical shuttle (2x tacticians). It makes for some really tough choices for an opponent since they really don't want to be in R2 of that, but paying attention to it along with Brath and Echo would be a pain. That leaves three points for predator on Brath. But, with no upgrades, the naked shuttle is often ignored to the detriment of the opponent...
Other good upgrades would be Rebel Captive on Echo (counters other high PS phantoms), Vader on shuttle, and FCS on Echo.