The Sith troopers battle pack is an excellent LEGO battle pack. The bright red troopers will definitely stand out in your minifigure collection.

There is one Sith trooper actually included in this battle pack. His helmet mould is the same as a First Order Stormtrooper's. With a T-shaped visor with emasculate grey stripes and detailing on the helmet. His torso is printed with red armour and some more grey stripes. His arms are unprinted. His legs have more armour printing with stripes. His head is a pre2020 clone trooper face. He carries a stud shooter.

There are two Sith Jet Troopers included in this set. Their helmets are an interesting mould with mandible like details around their helmet's vocoder. They have black and grey printing on the helmet. Their torsos have armour printing with yellow wing shaped badge on the right side of their chest plate. Their legs have the same armour printing as their foot soldier comrade. They wear a jetpack, obviously. That is a new special, moulded piece. With a printed tile specific only to one other set except in white. They are armed with stud shooters.

There is also a Final Order officer.he wears a kept with a final order symbol on the centre of the hat. The torso has red stripes down his coat and a silver belt. With plain black pants.

The build is straight forward and simple. It is a small two-person speeder. There is room for a pilot and a passenger/gunner. The speeder is a perfect patrol/escort vehicle for your army.
Overall I would say it's a great set. The only con is that there are two jet troopers and only one Sith trooper. I would have liked this set more if it was reversed.