/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/ is in wesnoth-1.10-ei 1:1.10.2-1.
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/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/01_The_Outpost.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/02_The_Escape_Tunnel.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/03_An_Unexpected_Appearance.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/04a_An_Elven_Alliance.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/04b_The_Undead_Border_Patrol.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/04c_Mal-Ravanals_Capital.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/05_Northern_Outpost.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/06_Two_Paths.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/07a_The_Crossing.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/07b_Undead_Crossing.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/08_Training_the_Ogres.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/09_Xenophobia.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/10_Lake_Vrug.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/11_Captured.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/12_Evacuation.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/13_The_Drowned_Plains.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/14_Approaching_Weldyn.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/15_The_Council.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/16_Weldyn_under_Attack.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/17a_The_Duel.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/17b_Weldyn_Besieged.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Eastern_Invasion/scenarios/18_Epilogue.cfg