To red-team a business plan is to deliberately attack it from an adversary's point of view — an investor, competitor, or regulator — to surface the weaknesses that would break it before reality does.
"Red team" comes from military and security practice: a dedicated group plays the enemy so the plan meets its opposition in a drill rather than in the field. Red-teaming a business plan applies the same discipline — you stop defending the plan and start attacking it.
The value is in the change of stance. A plan's author is invested in it being right; a red team is rewarded for finding where it is wrong. That inversion surfaces the assumptions the author cannot see in their own work.
BadMars red-teams a plan automatically. Instead of one reviewer, a Panel of up to thirteen specialists each attacks one failure domain, anchored to your own words and ranked by severity — a full red-team exercise in about ten minutes.