The mod brings in a set of new dialogues- fully voiced- and introduces many different side quests. Sydney follower allows games to enjoy the female companion for longer by making her your follower.
However, in the base mod, she is a temporary companion and stays for a short time. Apart from being an attractive woman, she holds a high profile for performing dangerous and risky jobs. Sydney is a companion of yours at the start of the game, which is specialized in relic hunting in the year 2277. Fallout 3 Redesigned – Formerly Project Beauty H.D.