At least half of mobile suit combat is close. My suits have generally been equipped with as many blades as guns.

[Justice has more, actually. It's just what suits him better these days, for whatever reason.]

Z'Gok is built for durability and better weight balance and distribution. It's also more versatile when it comes to additional equipment that can be switched out depending on the needs of the mission. The Volantes unit it came with stores extra cannons and strengthens its maneuverability.