Lots of Militarum Tempestus Scions parts on sprue as shown (taken from 4 boxes).

Description from GW:

Tempestus Scions are elite special forces of the Astra Militarum, well-trained in numerous combat styles at the Schola Progenium, equipped to the highest standard, and protected by reinforced carapace armour. Primed for a wide variety of specialist missions and prepared for aerial drops into warzones that most would consider suicidal , their most common armament is an armour-piercing hot-shot lasgun fitted with advanced sights.

This multipart plastic kit builds five Tempestus Scions – the soldiers of the feared Militarum Tempestus. Each model can be armed with a hot-shot lasgun, and the kit includes an optional vox-caster as well as an arsenal of additional weapons to equip specialist gunners – a plasma gun, meltagun, grenade launcher, flamer, or hot-shot volley gun. You'll also find parts to build one model as a Tempestor squad leader with a variety of alternative weapons – a chainsword, power fist, or power sword for melee combat, and a hot-shot laspistol, bolt pistol, or plasma pistol for ranged fire.

The kit includes loads of interchangeable components and cosmetic options to customise your Tempestus Scions – including 17 different heads, eight with helmets and nine with berets, as well as ammo pouches, knives, grenades, and canteens. This kit can alternatively be assembled as a Militarum Tempestus Command Squad to lead your special forces.