I have used a number of different methods to secure a nice, safe recovery process before deployments, but there have been times where I have been given 5000+ lines of TSQL with only 5 minutes before a deployment. Times like those I have just taken whatever backup is feasible in the window, and made sure all of the approvals for it are well documented and express vehemently that more time would be great. That way if something breaks I have been able to say I didn't like the plan and that I followed the required chain o' command.