Catching up on TerraSave is an article in Resident Evil Recollections. It was uploaded on 16 January 2015.
Claire is finally back as a player character in Resident Evil Revelations 2.
If you're wondering about her work with NGO TerraSave (which makes its first in-game appearance), Resident Evil Degeneration should give you a fairly good idea of what TerraSave is all about.
Claire's only weapon in the movie is ironically an umbrella...