Oracle DB user audit statements

DB Version: 12.1

Os: Linux 6

Oracle RAC: 4 nodes

DB size: 11 TB

I need to set up an audit for one production user(prodtech) in my RAC database and have the following requirements - only when successful:

1. Need to know who is logging in as a particular production user... prodtech

2. audit alter, update, insert, delete, rename and truncate all tables in prodtech schema

3. audit procedure, function, package - execute ... prodtech schema

4. audit create, drop an index in prodtech schema

5. every time we create a new table, do I need to run a audit statement or I can create a role that would audit certain commands for the prodtech user.