On his latest tweet, Respawn Entertainment founder – Vince Zampella gave a rough estimate on how big the client size will be for Titanfall on launch and here's what he responded:
@MyStoryTVyt @Titanfallgame about 21GB of download and 48GB installed.
— Vince Zampella (@VinceZampella) February 24, 2014
We never expected the client to be 48GB big, but we've read it directly from the founder. Given the size we could assume that there's a lot more of content waiting upon release compared to the beta as we don't have the multiplayer campaign yet and some visual improvements.
Titanfall is still up for pre-order at http://j.mp/buytitan