[Akiyoshi]

Considering a AAA-level Starlight Breaker was enough to destroy an ancient belkan capturing barrier and a purple thunder to destroy the one rised by a whole bunch of TSAB soldiers i fail to see how that will contain Godzilla for long. Buuuut, i get your point, if the barrier, the teleporters, the attackers and the executiiners (aka. the starships). Are all ready and perform a quick strategy then yeah, something like:

Godzilla appears, blows up some stuff and the TSAB makes an Oh Crap face...
* Mages battle him to no effect...
* Barrier is rised to contain him, gets cofused and blast more stuff until noticing he's caged and starts thinking about blowing up the barrier.
* Elite mages(presumable RF6) appear to face him and distract him from destroying the barrier.
* Group of powerfull teleporters make the calculations and preparations for the point and moment where they can properly teleport the Big G.
* Mages fire their bigger guns to mantain the Big G on the same point(Vita's Gigant Crusher hitting him on the head will look epic xD!). They manage to make him dazed/confused for a moment.
* Teleporters do their job and transport him in an epic joint effort to space.
* Big G recover councsiousness too late and roars in the silence of space as the float of battleships prepare to splat his molecules across the dimensions xD
* Everyone celebrates and look at the horizon hoping nothing like this will happen again xD

...if the TSAB manage to pull something like that with efficiently enough to have absolutely zero casaulties they'll deserve a medal xD

Alternate version will be having him fight Voltaire and Hakutenou xD!