You can use the "get" command to add individual weapons and items to your arsenal:

GetBaseballbat
GetIngram
GetIngramDual
GetDualIngram
GetMP5
GetColtCommando
GetMolotov
GetGrenade
GetM79
GetSniper
GetSawedShotgun
GetPumpShotgun
GetJackhammer
GetHealth
GetBeretta
GetBerettaDual
GetDualBeretta
GetDesertEagle
GetPainkillers
GetBulletTime