No, serious, the Behemoth of MW4 (+ mekpak) could really carry that monster on that large gun on its head^^
I think this behemoth looks awesome, but its greatest weakness is its slow speed, but the firepower of that gun is awesome
But just imagine the railgun as a super HGauss^^
But if we take it in game, it will have to produce awesome ammounts of heat and you will loose the gun because it is an easy target to LRMs, similar like the big gun of a Hollaender II