Yeah it seems the waves of attackers are triggered by walking into different areas of the palace.
Strange thing happened to me: I tried to throw a grenade, my indicator showed zero grenades (after I just did an ammo refill), then I used the mousewheel and it said 15 (full loadout), but when I threw grenades sometimes they just lay on the ground and didn't explode, and sometimes they did explode.“I’m old, sedentary and slouch a lot – will standing up at my desk … um, never mind.” |