You are far to linear with your thinking. Why would the Rein die, if the rest of the team are doing their jobs? Unless it is a troll charge (which we shall disregard as a possibility because that isnât part of the discussion), then at least 1, if not both, supports should be pocketing Rein. Assuming your supports have picked smartly to play with a Rein (this is part of the reason Rein isnât a good choice rn).
No Rein that knows how to play the game makes the suicide dive. They will charge an angle, or over a short distance to either close the gap (although if you have a Lucio is this much easier without charging), or force space to be created.
Standing their as a shield bot, you will need your DPS to get immediate picks. If that happens, lovely. But you are in an ELO where that isnât going to be a common occurance. So what will happen is the Rein stands there waiting for picks, while his shield is destroyed, then he either takes damage, dies, or has to play LoS to recharge shield. All this has happened, and you havenât taken any space on the map.
Now, if you have Lucio, you can hold shield, and use speed boost to rotate as a team round to high ground, or a more advantageous angel⌠but then if you are still in the shield bot mind set, you are again waiting for someone else to make a play for you.
Better option, charge to a corner, take that space, just map cover to stop taking so much damage and rotate between swing and shield quickly. If the enemy backs off, you go again, move forward, swing and shield. Making sure your shield never breaks is huge. If you can tap block abilities like Hogs hook, stuns and random spam while pressing W to take space, and swinging to get that sweet damage in you are on to a winner.
The key to all the his supports. Sadly below diamond I think support playing sometimes forget how impactful their role is (number 1, tank 2, dps 3). And how much impact their picks and decisions can have on the game. This is why stacking, or being an effective communicator are such handy tools for climbing.
In short (given that OW2 and 5v5 will require you to make plays), learn to play more aggressively. Be too aggressive if you have to. It is always easier to tone down over aggression mid game that it is to do the opposite.