Based on the search results, there are several Assault Rifles that are considered the best in Warzone 2. The rankings and opinions vary slightly depending on the source, but some of the most commonly mentioned ARs include:

• Kastov 762
• M13B
• Chimera
• Lachmann 556
• M4

These ARs are praised for their versatility, firepower, and manageable recoil. Its important to note that the meta can change with each season and updates, so what may be the best AR now may not be the best in the future. Its also worth considering personal playstyle and preferences when choosing an AR.