Okay, I understand. You're looking for a PC that can handle Call of Duty: Warzone at 4k resolution with a 144Hz refresh rate. This requires a high-end gaming PC with a powerful graphics card and processor. I will search for prebuilt gaming PCs that meet these requirements.

Okay, I've reviewed the search results for a gaming PC capable of running Call of Duty: Warzone at 4K resolution with a 144Hz refresh rate. Based on the results, here's a promising option:

This PC seems well-equipped for your needs, with a top-tier processor, ample RAM, and what is advertised as a high-end graphics card. However, I would suggest confirming the actual specifications of the graphics card as the RTX 5080 is a future generation card, and the listing may contain an error. Also, since you are in Germany, double-check the availability and warranty support in your region.