NS2:FA - Alien Abilities

Mutations:
All aliens can evolve mutations for types that there are two or more structures of. (ex. 2 or more Crags enable Regeneration and Carapace)
Evolving costs points, and you can only have as many mutations as there currently are Hives, and only one of each type (ex. you cannot have Regeneration and Carapace at the same time)

Skulk
(Starting class)
Bite - Damage nearby players.
Parasite - Infects marines which makes them take 10% additional damage, and slows them by 20% for 2 seconds.
Leap - Charge to make a giant leap, charging slows movement. (requires 2 Hives)
Xenocide - When the skulk dies, he splashes acid around him, damaging anyone nearby. (requries 3 Hives)

Gorge
(Builder class)
Build - Place a structures that then will build itself. Can be built on floor/walls/roof. Max 1 construction at a time.
Healspray - Heal aliens and structures in a cone.
Spit - Spit a ball of goo that damages players. Flies in an arc.
Bilebomb - Spitted gooballs does more damage to structures and also splashes. (requires 2 Hives)
Lerklift - Can attach itself to the underside of a Lerk, can still drop structures, spit and healthspray. (requires 3 Hives)

Lerk
(Support class)
Spikes - Shoots ranged spikes, does very little damage versus structures.
Fly/Flap/Glide - The lerk can use his wings to move quickly through the air.
Spore - Shoots a cloud of gas that damages marine players in it over time.
Primal Aura - Nearby aliens gain a slight melee attack speed increase. (requires 2 Hives)
Lerklift - Can carry a gorge while flying, decreases maximum speed slightly and disables Spikes and Spore. (requires 3 Hives)

Fade
(Damage class, requires 2 Hives)
Swipe - Does quick and strong melee damage.
Blink - Teleports to a new location in view. (requires 2 Hives)
Shadowmerge - Slowly gains invisibility while standing still. (requires 3 Hives)

Onos
(Tank class, requires 3 Hives)
(An Onos with only 1 Hive have no means to attack)
Legspace - Skulks, Lerks and Gorges can move under the Onos.
Gore - Does heavy damage, extra powerfull to structures. (requires 2 Hives)
Rush - Increases movement speed while running in a straight line, damages and pushes back players, tramples (destroys) sentries. (requires 3 Hives)


Strategy Basics:

• Early game uses Skulks and Lerks to harass marines, add a Gorge to quickly wear them down.
• Mid game have Fades picking off marines, while lerks and skulks distracts. Gorges helps assaulting fortified positions.
• Late game abilities and Onos tear down any remaining resistance.

Using a mix of classes is always the key to success.