Arena Breakout: Infinite — mode and difficulty are different choices
Identify the Infinite edition, then separate your chosen raid mode from its difficulty tier.
Keep the full title in view
This guide concerns Arena Breakout: Infinite, the PC extraction FPS named on its official website. The developer describes raids that combine player encounters, AI threats and the goal of leaving with loot. When looking up instructions, include Infinite in your search and check the game shown in the guide. That small detail helps keep your research focused on the client you actually intend to use.
Separate mode from difficulty
The official overview lists Tactical Ops, Solo Ops and Covert Ops as game modes. Separately, it names Normal, Lockdown and Forbidden Zone as difficulty tiers. Treat those as two details to check before a raid. For a first session, use the available tutorials, identify the selected mode and read its entry conditions in the client. Then decide what you are willing to bring and what you want to extract.