In all sincerity, I don't know what you're asking.
Are you looking for someone to teach you how to perform search and rescue? Or are you planning to teach search and rescue and want help devising a curriculum?
Your last question is either "what kind of daisy chain should I use?" or "what is the meaning of the phrase 'daisy chain?' " The answer to the first version is, they're all alike (though there are some daisy-chain-like products that are stronger than traditional daisy chains). The short answer to the second is, it's a length of webbing with multiple loops so that you can tie in anywhere along its length. Most daisy chains are stitched loops which are very weak (4 kN or something) so they are mostly used in situations where they only have to hold body weight (i.e., aid climbing), not hold a fall.
The long answer is:
1. A chain formed by: a) cut a slit in the stem of a daisy (or any flower), near the base of the stem. b) thread the stem of another daisy through the slit and pull it through. c) cut a slit in the stem of the new daisy. d) go to b)
2. Any chain of a few links where each link includes a blocky "head" and a wiry "tail". For example, a method of connecting computers and/or peripheral devices (disk drives, printers, scanners) that was popular in the 1980s.
3. In rock climbing, a loop of webbing that has been sewn into a multiple closed loops, resembling a chain.