Spawn: In the Demon's Hand [DC]Spec Ops - The Line [cheats]Spec Ops The Line Steam [trainer +2]Spec Ops: The Line *STEAM* [trainer +4]Spec Ops: The Line v1.0 [trainer +4]SpellForce - The Order of Dawn [cheats]SpellForce 2 Demons of the Past V2.66.5360.0 [trainer +8]...
Spawn: In the Demon's Hand [DC]Spec Ops - The Line [cheats]Spec Ops The Line Steam [trainer +2]Spec Ops: The Line *STEAM* [trainer +4]Spec Ops: The Line v1.0 [trainer +4]SpellForce - The Order of Dawn [cheats]SpellForce 2 Demons of the Past V2.66.5360.0 [trainer +8]...
then meditate for a day to make them respawn. Kill more cows until you get the "Moo-rderer" achievement. If there are no cows when you arrive, meditate and they will eventually spawn.