Whilst the LL-553 prototype had been well received by the space federation (12 favourites, woo hoo!!) a ferocious Ugokin* attack left it virtually destroyed. The team was in disarray & a rebuild commenced from scratch.
Then with revenge on their minds, thoughts turned to artillery, or to be technical, guns; the bigger the better & plenty of them!!
*with much homage & respect to Nnenn :-)