Redemptionists are religious extremists who believe sinners must be destroyed by fire and under blade. And in the eyes of a Redemptionist, everyone is a sinner. They are cheap and unarmoured, but effective in close combat.
The Adepta Sororitas Canoness leads her troops into battle, inspiring them to fight harder in engagements. She is armed with a Blessed Weapon, that makes her a formidable opponent in close combat.
A Necron Aeonic Orb is a long ranged weapon of almost unparalleled power. It floats ominously across the battlefield searching for suitable enemy units to target with its Solar Flare, and a hit can reduce an unshielded Titan to dust in one volley.
The Dark Eldar Razorwing Fighter is a nimble aircraft that can cause havoc if allowed to attack freely. Monoscythe Missiles and Splinter Cannon will make short work of infantry, and its Dark Lances are effective against even heavy armour.
A Dark Eldar Talos Pain Engine is a nightmare creation of the Haemonculi, that glides into battle and eviscerates foes with its Massive Blades. It is fearless and has heavy armour, making it difficult to banish from the battlefield.
The Leviathan is an office block-sized vehicle with an impressive array of weaponry, Void Shield protection, and huge transport capacity. Its main armament, the Doomsday Cannon, has enormous range and will destroy most enemies in a single volley.
The Night Spinner tank is a useful addition to an Eldar army, providing indirect fire capability. They should be kept hidden from enemy view where possible, as they will be neutralised quickly after coming under fire.
The Trojan Support Vehicle is an armoured tractor capable of towing heavy guns into position.
The Basilisk is a mainstay of many Imperial Guard armies. It can pound enemy lines from afar, and its Earthshaker gun will make short work of destroying infantry or armoured vehicles.
Thudd Guns (aka Light Artillery) are quad barrelled artillery weapons that are useful for pounding enemy positions from behind cover.