Noted
edit: if you need side specific setSkill
{ if (side _x == EAST) then {_x setSkill 0.3;} }forEach allUnits;
{ if (side _x == WEST) then {_x setSkill 0.3;} }forEach allUnits;
{ if (side _x == RESISTANCE) then {_x setSkill 0.3;} }forEach allUnits;
edit: if you need side specific setSkill
{ if (side _x == EAST) then {_x setSkill 0.3;} }forEach allUnits;
{ if (side _x == WEST) then {_x setSkill 0.3;} }forEach allUnits;
{ if (side _x == RESISTANCE) then {_x setSkill 0.3;} }forEach allUnits;