From Halopedia, the Halo wiki
You mean tactics for facing individual enemies in combat? Not on their main pages, no. But, we do have gameplay pages for each species; Sangheili/Gameplay, for example. This is where "tactics" relevant to fighting them would go. However, I should mention that these pages are not up to the standard of modern Halopedia and will likely be massively reworked in the no-to-distant future, so anything you add to these pages might not last very long.
Hi. It's not specific to Firefight maps, but "Tactics" sections are something we're moving away from in general for all maps. This is largely due to the fact that they are highly opinionated by nature and aren't things that can be easily verified. While that was the primary reason for your edits being reverted, the edits were also full of spelling, grammar, and formatting errors. For content to remain on Halopedia, it must be of a minimum quantity standard and also maintain the wiki's formatting standards. Thank you.