Strategist

This is a try on making a fighter's subclass focused on supporting.

Bonus Proficiency

At level 3 you gain proficiency in Perception and Investigation.

Strategist's Wit

Beginning when you choose this archetype at 3rd level, you can use your action to choose a number of enemies up to your proficiency that are in direct sight. Make then a Wisdom (Perception) check DC 5 x number of enemies chosen. If you pass the check, you successfully analyze your enemies' openings. Opportunity attacks towards analyzed enemies are rolled with advantage. In addition, you can use your bonus action to allow an Ally that you can see to move up to half their movement speed without provoking reactions from analyzed enemies. Should you fail the Wisdom check, you still complete the visual analysis but only for a number of enemies whose DC your Perception check would beat. For example you choose 3 enemies, making the DC 15, if you roll a 10, instead of 3 enemies you successfully analyze 2 of your choice.

You can analyze enemies a number of times equal to your Wisdom modifier per combat.

Strategist's Orders

Starting at 7th level, If you didn't take the attack action on your turn you can use your reaction to allow a number of allies equal to your wisdom modifier to make a single weapon attack at the end of your turn.

You can use this feature a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

Quick Thinking

At level 7, you add your Wisdom modifier to initative rolls.

Warfare Knowledge

Starting at 10th level, double your proficiency bonus for Investigation and Perception checks when making checks on anything warfare or combat related.

Thought Before Action

At 15th level, everytime you take the Dash, Disengage, Dodge or Help action, you can ready an Attack. In addition, any action that you ready is rolled with advantage.

Strategist's Guiding Voice

At 18th level, the range of your help action becomes 60 feet and can target a number of allies equal to your proficiency bonus.