These things are slow on land so lure them on to land on rocky type place ot just somewhere they wont reach water and escape on time.then stand on smt they cant reach or run and shoot them run when they cahct up shoot with tranq arrow then when hes knocked out shove some meat down his troath and voila u ahev a sacro . Lvl up health dmg and u will have a killer croc.they are good defenders .