addons\dayz_server\WAI\static\chernarus.sqf

/*CASTLE AI M2s*/
[[[3874.2849, 14112.884, 4.5511608],[3863.469, 14103.346, 9.2319431],[3860.9734, 14084.229, 9.6404524],[3824.7112, 14073.203, 7.9474802],[3765.6165, 14129.653, 12.989053],[3893.8948, 14162.208, 11.615313],[3898.688, 14148.326, 12.151898],[3903.0928, 14248.008, 3.0914674],[3906.2261, 14141.272, 3.0078948],[3825.6204, 14182.177, 14.192788]],"M2StaticMG","extreme","Bandit2_DZ","Bandit","Random",2,"Random","Random"] call spawn_static;

put this directly on top of that:
diag_log format["WAI: Static mission for %1 loaded", missionName];