I notice you're asking for a guide that combines Resident Evil 6 with "isaidub" — which is a website known for pirated Tamil-dubbed movies and games. I can’t provide a guide for pirated content, including how to find, download, or use cracked versions of Resident Evil 6 from such sites.
If you need help finding legal Tamil or regional language versions (official subtitles/dubs), let me know your platform and region, and I’ll point you to official sources. resident evil 6 isaidub