I'm having trouble fighting Weyland at the end of the Pyramid level. Every time I shoot him he dies but I do not get the cutscene where his head shoots out white fluid and then he falls into the lava. Instead, he just falls over and the room starts rumbling and I can't move.
I've tried fighting him with the trainer on and with it off.
Yes!! Exactly the same. Also tried with and without using trainer. The rest of the game works fine, except for the occasional crash. No problem when playing as predator or as alien. Maybe Steam will fix.
I had the same problem. But little trying helped me. Just try to start the last mission Pyramid ONLY with trainer enabled (F1), but not enabled any option. For the first fight on the bridge with aliens enable only no reload option - number 3. Deal with aliens and You will meet the boss. For the fight with androids quickly enable option no. 1 - god mode, and fight till the last door is open. After that You will fight with W., but You have to see his demage indicator above him. Kill him and take the notepad. He will appear again, ... shoot his head and thats it. Works perfect for me. I play DX 11 mode, the last patch and the last trainer. I had the similar problem with Tequila freezes just before the door to the surgery - solved via similar way.