Activision has announced that MW3 Collection 2 for PS3 and PC will be available tomorrow on June 21st.
MW3 Collection 2 includes 3 MP Maps [Sanctuary, Foundation, Oasis]; 2 Face-off Maps [Getaway, Lookout]; 2 Special Ops Mission [Iron Clad & Kill Switch]. Collection 2 will be available to download via the PSN Store and Steam for PC. It costs $14.99.
For PC, the two free Face-off Maps, Erosion & Aground, will be available tomorrow, 6/21 for FREE.