Well, most of people just think RDR is a Rockstar San Diego original game but i dont know. It was originally planned as a Gun Smoke remake and it was developed by the same team as Nintendo 64 Resident Evil 2. Angel Studios + Capcom. Later, in 2002, Take-Two bought Angel Studios and renamed it to Rockstar San Diego. Capcom left the project in July 2003. Game came out on 2004. There's a video of E3 2002 and the game is pretty much the same as the retail game. Obviously there are many minnor things changed but its still the same third person shooter. I wonder how much of each studios the game have. I'm lazy to research in the game credits and i dont think it count the Capcom work.
Diggin into IGN articles (the only useful part of IGN) i read that it was developed by both. Any way to confirm that it was developed only by Angel Studios?