Kill 20 Enemies with the Wes - 44

Kill 30 Enemies with Mk-NDI Grenades

Clear the airwaves

Answer a ringing phone

Drop in on an old friend

There is only one way in

Complete Main Quest Chapter 1.

Complete all Challenge Tombs

Croft Manor: Open Lord Croft's Safe

Croft Manor: Collect 50% of the Relics in Croft Manor

Collect 150 Cards

Purchase all skills in a single category

Defeat a Deathless Swordsman using only melee attacks and a finisher