To spawn monsters type in console:
give monster_x_x
Replace x with any of the following:
Counter Terrorists
monster_ct_gsg9
monster_ct_spetsnaz
monster_ct_swat
monster_ct_sas
monster_ct_gign
Terrorists
monster_t_arctic
monster_t_asian
monster_t_desert
monster_t_jungle
monster_t_russian
monster_t_urban
Weapons
assaultrifle
grenader
kamakazi
law
machinegun
melee
mp5
pistol
shotgun
smg
sniperrifle
example give monster_ct_gsg9_assaultrifle