In Assassin's Creed Unity, Arno Dorian consistently altered his outfit in order to suit his needs. He could do this virtually at any time during his time as an Assassin in Paris
Arno also obtained numerous special outfits upon completing certain challenges or meeting specific criteria, as listed below.
Special outfits
Altaïr Ibn-La'Ahad's Robes
Obtained through the Assassin's Creed Unity Companion.
Pierre Bellec's Outfit
Taken from Pierre Bellec following his assassination.
Shay Patrick's Robes
Reach Initiate level 6 and find the corresponding chest is Paris
Connor Kenway's Robes
Reach Initiate level 9 and find the corresponding chest is Paris
Edward Kenway's Robes
Reach Initiate level 1 and find the corresponding chest is Paris
Ezio Auditore's Robes
Reach Initiate level 13 and find the corresponding chest is Paris
Thomas de Carneillon's Robes
Find all the Fragments in Nostradamus Enigmas
Arno Dorian's Master Assassin Robes
Obtained following the death of François-Thomas Germain
Reference