Answer by taking a quote from the following article:

Linkin Park is an American rock band from Agoura Hills, California. Formed in 1996, the band rose to international fame with their debut album Hybrid Theory (2000), which was certified Diamond by the RIAA in 2005 and multi-Platinum in several other countries. Their following studio album Meteora continued the band's success, topping the Billboard 200 album chart in 2003, and was followed by extensive touring and charity work. Having adapted nu metal and rap metal to a radio-friendly yet densely layered style in Hybrid Theory and Meteora, the band explored other genres on their next studio album, Minutes to Midnight (2007).

In an interview with Fuse, Shinoda confirmed that Linkin Park had begun recording their sixth studio album in May 2013. The band released the first single from their upcoming album, titled, "Guilty All the Same" on March 6, 2014 through Shazam. The single was later released on the following day by Warner Bros. Records and debut at No. 28 on the US Billboard Rock Airplay charts before peaking at No. 1 on the Mainstream Rock charts in the following weeks. Shortly after the single's release, the band revealed their sixth album would be titled The Hunting Party. The album was produced by Shinoda and Delson, who wanted to explore musical elements from Hybrid Theory and the band's earlier material. Shinoda commented the album is a "90s style of rock record". He elaborated, "It's a rock record. It's loud and it's rock, but not in the sense of what you've heard before, which is more like '90s hardcore-punk-thrash.' The album includes musical contributions from rapper Rakim, Page Hamilton of Helmet, Tom Morello of Rage Against the Machine, and Daron Malakian of System of a Down. The Hunting Party was released on June 13, 2014, in most countries, and later released in the United States on June 17.  Linkin Park performed at Download Festival on June 14, 2014, where they played their debut album, Hybrid Theory, in its entirety. Linkin Park headlined Rock am Ring and Rock im Park in 2014, along with Metallica, Kings of Leon, and Iron Maiden. They also headlined with Iron Maiden again at the Greenfield Festival in July. On June 22, Linkin Park made an unscheduled headline appearance at the Vans Warped Tour, where they played with members of Issues, The Devil Wears Prada, A Day To Remember, Yellowcard, Breathe Carolina, Finch, and Machine Gun Kelly. In January 2015, the band embarked on a tour to promote the release of The Hunting Party, consisting of 17 concerts across the United States and Canada. The tour was canceled after only three concerts when Bennington injured his ankle. On May 9, Linkin Park performed at the first edition of Rock in Rio USA, in direct support for Metallica.  On November 9, 2014, MTV Europe named Linkin Park the "Best Rock" act of 2014 at their annual music awards ceremony. The band won the 'Best Rock Band' and 'Best Live Act' titles of 2014 on Loudwire's Music Awards. Revolver ranked The Hunting Party as the fourth best album of 2014. In an interview with AltWire on May 4, Shinoda reflected on The Hunting Party and commented on Linkin Park's future, stating; "I'm really happy with the reaction from The Hunting Party, and I think we're ready to move somewhere new on the next album, which will be coming [in 2016]".  Linkin Park collaborated with Steve Aoki on the song "Darker Than Blood" for Aoki's album Neon Future II, which was released in May 2015. The first preview of the song came during Aoki's performance on February 28, 2015 at the Aragon Ballroom in Chicago, Illinois. The song was debuted on Twitch.tv on April 13 and released on April 14.  Linkin Park performed at the closing ceremony of Blizzcon 2015, Blizzard's video game convention.

Why did they name their album the Hunting Party?
Shinoda commented the album is a "90s style of rock record".