The Campaign

The Strangers is a 27 mission campaign featuring a core team of 9 heroes for you to play (and some extra recruitable heroes). It is also suitable for playing custom characters of your own design after the first four missions. After all, the Strangers themselves started as a custom team in the original FF campaign.
It is epic in scale, featuring battles between teams of high-powered characters spanning multiple worlds. The emphasis is placed on the superhuman side of the superhero genre, rather than the crime-fighting vigilante side.

Prestige and Experience

The accumulation of prestige and experience points works differently to the way it did in the original Freedom Force campaign. Prestige is awarded only for completing objectives. Typically, the big bonuses are attached to secondary objectives, which are more difficult to complete. To further reward the completion of secondary objectives, an extra experience bonus is awarded to every hero left standing at the end of each mission for each secodnary bonus completed.
There are also a couple of training missions which allow the characters of your choice to build up on experience points.
And you'll need it - the Strangers is considerably harder than the original Freedom Force campaign.

New Powers

Several new powers have been created through the scripting system that drives Freedom Force. These include:

Telepathic scan - locate all enemies on the map instantly
Gaseous Form - transform into a cloud of poisonous gas!
Power Cloning - absorb your allies abilities temporarily!
Energy Spirit - release and control a destructive radioactive spirit from your own body!
Destruction Curse - turn your enemies (or allies) into walking bombs!
Growth - turn into a hulking 10 foot giant at the flick of a switch!

New Attributes

Some new attributes have also been created through code:

Charged Pair - characters with this ability mutually energise each other just be being nearby
Acid Blood - spray the area with acid whenever you take damage!
Telepathic - enables you to see all enemies on the level at all times
Presence - minions of evil tremble with fear at the mere sight of you!

Unfortunately the new powers and attributes cannnot be used by custom characters.

Combo powers

Certain characters are able to activate special powers only with the help of specific team members. For example, an gaseous character can be turned into a freezing gas by an ally with ice powers. Think you've found all the combo powers? Look here to unlock the mysteries of the Strangers!
Don't forget, the bad guys'll do the same sometimes!