id software decided in their infinite wisdom that default Quake Live CTF behaviour is to have universal ammo_packs. You can test this for yourself by starting a new CTF game with the stock maps. Console cvar 'g_ammopack 0' will enable the classic ammo pack-per-weapon that we are all used to. The majority of online CTF servers have this cvar set, porting this map required placement of the relevant entities, so they can be toggled (mapping etiquette for QL)

looks amazing