So you propose that you, at 1,5k, destroy all enemy tanks with 2 meltaguns, 3 power fists, a predator,
librarian, blood talons (with rage) and the power of furious charge? Seems like the enmy can just kite too easily.
On the other hand, the jump infantry part of the army is quite small, only 27 models.
Maybe get another assault squad instead of silly little death company, and maybe a furioso?