It’s a bountiful spring break at retail, as several high-profile new releases are out this week, including THQ’s war-at-home shooter, Sega’s open-world crime game, and 2K’s latest tennis title. Leading the pack this week is THQ’s Homefront for the Xbox 360, PlayStation 3, and PC. Due out on Tuesday, the game was developed by Kaos Studios and is a story-driven shooter set after North Korea invades and occupies the United States. The single-player component sees the player as a member of the American resistance fighting the Korean People’s Army in an attempt to regain control of the ruined nation. The multiplayer modes are set earlier, letting players engage in military scenarios from the invasion itself. Also due out this week is Sega’s Shogun 2: Total War for the PC. Developed by Creative Assembly, Total War returns to 16th-century Japan during the tumultuous Sengoku period. Players assume the role of a daimyo, or clan leader, who must engage with fellow warlords, be it through conflict or diplomacy, to reunite the sundered island nation. Gamers looking to get their hands dirty can pick up Yakuza 4 for the PlayStation 3 this week. In this latest franchise installment, main character Kazuma Kiryu is…