Below is a card list with the titles of all cards of the base game and the expansion:

Base Game cards:

Marine Cards:

Alert
Front Guard
Ground Assault
Killer Instinct
Marksman x2
Medic
Prepared
Officer
Recon
Scout
Sniper
Special Ops x2
Survival Ops x2
Tactician
Tough

Invader Cards:

Ambush x2
Charge x4
Dark Energies x4
Darkness x3
Dodge x4
Dud x3
It's A Trap! x2
Jammed x2
Jump The Gun x3
Not Quite x3
Panic x2
Rage x2
Sealed In! x2
Shaky Footing x2
Smash x3
Surprise Attack x4
1 Zombie AND 1 Trite x1
1 Zombie AND 1 Imp x1
1 Imp AND 1 Trite x1
1 Zombie OR 1 Trite x2
1 Imp OR 1 Zombie x2
1 Imp OR 1 Trite x2
1 Demon OR 1 Mancubus x1
2 Trites x1
2 Imps x1
2 Zombies x1
1 Zombie AND 1 Imp AND 1 Trite x2
1 Mancubus x2
1 Demon x2
1 Archvile x1
1 Hell Knight x1

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Expansion Cards:

(expansion also contains three replacement Invader cards of the type "Dud" for the base game)

Difficulty Level Cards:

Nightmare
Ultra-Violence
Hurt Me Plenty
Hey, Not Too Rough
I'm Too Young Too Die!

Marine Cards:

Assassin
Big Guy
Careful
Crack Shot
Danger Sense
Efficient Killer
Lean and Mean
Lithe
Perfect Aim
Tech Op

Invader Cards:

Charge x3
Crushing Blow x3
Darkness x2
Dark Summons x2
Descent Into Madness x2
Dodge x3
Dud x3
Earthquake x3
Jammed x3
Misidentified x4
Rage x2
Smash x3
Soul Fire x2
Surprise Attack x3
Tick Blast x3
Wraith Jump x4
+ Spawn cards exactly as in base game