You'll receive the discount if you owned Insurgency in the past. It's a loyalty discount. Other wise, you'll have to pay the $30 dollar price.
Steam Community Moderator for Insurgency Sandstorm, World War 3, PAYDAY 2, Battalion 1944, Black Squad, John Wick, Raid World War II, and Overkill's The Walking Dead. Past Experience: Warner Bros, Activision & Skydance Interactive.