Is there an APC unit that can transport infantry, or a vehicle that allows them to shoot from inside?

Both Nod and GDI have APC-type vehicles. The GDI APC, called the Armadillo, is a heavily-armored, slower-moving vehicle with a powerful gun mounted on the roof. The Armadillo is best used to drive directly into enemy territory, especially when upgraded with a reflective dozer blade, allowing it to carve out a swath of damage. The Reckoner returns as the Nod APC, a rapid-transport system that units can only fire out of when the transport is deployed. The Reckoner gains both a range advantage and additional armor when deployed, and can burrow, allowing it to get into position with minimal difficulty or pop up unexpectedly behind enemy lines.


What abilities does an engineer have?

The engineer has received much more focus in C&C4, becoming a multi-functional unit that can fill several roles. Though fragile, the engineer can heal any nearby units, even from inside of transports and garrisons. Both engineers use a low-damage, fast-firing, area of effect weapon especially good at destroying enemy mine fields. Engineers can detect stealthed and burrowed units, traverse cliffs, and capture the husks of large units as well.


Are the GDI fan favorite Firehawk and Hammerhead returning from C&C3?

Indeed they are! The Firehawk is one of the fastest and most fragile units in the game and can quickly drop a payload of anti-aircraft rockets and anti-ground bombs before needing to re-arm (which occurs more rapidly in the presence of the Crawler). In addition, a max-tier support power calls in an elite squadron of Firehawks capable of doing a large amount of damage to all units in an area. The Hammerhead returns in a much beefier form as a heavy assault gunboat for GDI. Armed with dual rocket packs and a nose-mounted gattling gun, the Hammerhead can dish out a large amount of damage to light and medium targets, and can be upgraded with Berzerk, a timed ability which massively increases the rate of fire of the unit, but decreases its movement speed and chance to hit.