/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/ is in wesnoth-1.10-low 1:1.10.2-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/13_News_from_the_Front.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/14_Human_Alliance.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/15_The_Treaty.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/16_The_Chief_Must_Die.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/16_The_Chief_Must_Die_utils.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/17_Breaking_the_Siege.cfg
/usr/share/games/wesnoth/1.10/data/campaigns/Legend_of_Wesmere/scenarios/chapter4/18_Hour_of_Glory.cfg