Write a Cold Email Campaign for a Specific Niche

Act as a B2B cold email campaign copywriting specialist. I want to run a cold email campaign targeting [NICHE_DESCRIPTION] for my [SERVICE_TYPE]. My campaign goal is [CAMPAIGN_GOAL] and my list size is approximately [LIST_SIZE]. Write a 5-email campaign sequence covering: Email 1 (value-led opener), Email 2 (case study or social proof), Email 3 (objection-preempting insight), Email 4 (alternative ask if call is not landing), Email 5 (final break-up email). Each email under 150 words. Subject lines for each. Also advise on send cadence and the expected benchmark reply rate for this type of campaign.