I'd like to share my research on flag tactics.
The link can be found here .
Here are the basics:
1. Always assume each team has a flag at stand. Don't ever lose your flag. It's not good.
2. There are 12 possible flag positions. This is based on a combination of 3 possible flag timers (neutral, ally, enemy) and 4 possible flagging positions (neither team has someone back, only ally has someone back, only enemy has someone back, both teams have someone back). 3 * 4 = 12. There is a best way to play each scenario, which is basically flag tactics. Learn and love it.
3. Flag advantage = team has extra person to do something. Very important.
4. Backup flag = you have control of flag stand and have another flag.
5. Overcap = enemy has control of flag and you have flag (the overcap)
6. The amount of snares in your build depends whether you need a backup flag or just an overcap to use your flag advantage. Lots of snares = generally just need overcap (e.g. RNME), minimal snares = generally need a backup flag (e.g. dual ele spike)