An Imperial Knight Paladin excels in engagements, where its Chainsword and Shock Lance will make short work of most targets. It is also armed with a Battlecannon for long range support.
Drop Pods are deployed from a Strike Cruiser or Battle Barge. They replace transport Rhinos, and allow the Space Marine to strike anywhere on the board with impunity. They are also one of the best ways of deploying slow moving Dreadnoughts.
The Phoenix Bomber is one of the best ground attack aircraft in Epic. Although expensive, they are fast, well armed, and fairly resilient. They are best used for mopping up fleeing formations.
Imperial Guard Snipers are excellent for taking out enemy targets of high importance. They can also provide a useful screen to protect against assaults on valuable friendly units.