What is the meaning in a dream of ambush

I have had-still having this dream every single night for about 7-8 months now and it starts as a purge type apocolyptic type scenery and I repeat the what I call "level" until I clear it without any fatalities. So the first few nights I would get to a certain point in the dream and then it all goes black and thats the end of the dream for the night, so I said hm I wonder why? Then during my dreams I started saying to myself and my crew of purgers "don't go odown this way, remember what happened last time they all busted out the door and ambushed us". So we end up not going there, then the dream advances onto the next level per say. This scenery was only for the first 4/5 months then it changes to a field trip going to north carolina where I see a big glass building with a deep black swimming pool that is said to be the darkest deepest body of water to the center of the earth with a dining table across the top, now the same sort of thing happens again I go through to this certain checkpoint almost and then this girl across from me falls in the water and disappears and then the waiter turns evil and makes us all jump in the water and then its just blackness-end of the dream, over a few nights I realized something bad happens when the girl falls into the water so my next dream I tell everyone "grab her shes about to fall in" and then the story carries on nicely and the waiter doesn't turn evil

I went to fight a war in china. My unit was ambushed in combat and we were all captured. The chinese proceeded to torture all of us and raped some of us to death. In the end only i was left and they made me look at the bodies. THey then castrated me and let me bleed. In the end they incinerated me and I died. I woke up in a world of pure white.

An ambush of helicopters dropping missels in water and deadly gas bombs