Melee

Dune: Awakening employs a system of combined arms, which means that combat will be divided in (at least) three different parts: melee, ranged and vehicular combat.
As with that, melee will be a big part of the game, as the world it is set in focuses mainly on melee.

Melee in game

Melee is a term usually used for close-quarters fighting with weapons that are not used to shoot projectiles. And Dune: Awakening wont be any different.
Melee in Dune: Awakening will be based at fighting with melee weapons (swords, rapiers, daggers, crysknives etc.) and with shields. Shields will enforce melee fights, as shooting a shield with lasgun causes an explosion (albeit smaller then the pseudo-nuclear ones mentioned in the novels)
Melee is said to be viable late game, and even have its own abilities that set it apart and make it entirely different then without them.

Types of melee weapon

Not much has been confirmed, although rapiers and daggers have already been shown. Other probablilities point at swords, pulse-swords, knifes, kinjals, crysknives and similar.

Abilites with melee

Ginaz Swordmaster?