Yeah, if Tracer just uses only her first blink on rollout so a regular pattern of blinking forward 7.5m then running forward at 6m/s for 3 seconds (18m) until the first blink recharges so she can blink again, that’s a regular pattern of 25.5m every 3 seconds… or an average of 8.5m/s.
Tracer will get to the fight from spawn about as fast as Soldier 76, and like the masked avenger without putting loads of abilities on long cooldowns.
That’s faster rollout than Dva or Winston maxing out their movement abilities, though those may be able to save time by crossing gaps or taking shortcuts to high ground. It’s faster even than Rein’s maximum rollout speed assuming he can charge in a straight lime almost immediately after leaving spawn. Also faster than Lucio using amp it up as soon as spawning and speed boost for the rest of the rollout, wall ride speed boost doesn’t stack.
The only hero who can really beat Soldier 76 and Tracer for rollout speed is Hammond.
With Biotic field (BF) Soldier 76 can absorb 405 damage over 5 seconds while still able to evade within an area and attack.
But the damage has to be coming in slow and steady or else he’s going to get fragged before BF even has a chance to heal 204 damage. It’s really good for damage that hits at a steady rate of 80dps or lower, so evading about 40% of the shots from an Orisa would be it.
But if damage is coming in bursts then healing is wasted, if he is dodging grenades/rockets/arrows for the first 1-2 seconds then the 40hp/sec healing might as well not be on, then he takes 120 damage, if he takes another equal hit within the next second the damage will overcome the healing. Whereas tracer can know she got hit by a phara/junk/Hanzo attack and can very quickly realise that’s 120 damage, only 30hp would be left so “it’s rewind time”.
The limitation on BF is the timings of the ability mean it’s not very effective to use on reaction or to escape. It only really adds up if Soldier can begin using it from cover when he expects to take steady chip damage, the cooldown is too long to use on a whim.
And if he does use it this way, he’s probably going to come out of fights with sub-50hp, he’s going to need a healer to stay in the fight as if he takes any chip damage from any enemy they’ll see how weak he is and try hard to finish him off. You can’t repeat this on a 15 second cycle like Tracer can repeat her “blink in and try to damage, whoops take 130-149 damage, recall-escape” on her 12 second cooldown unless Soldier 76 has really convenient medipacks nearby.
Tracer is nowhere near as dependant on medipacks, she can exploit them if she’s being chased down after a recall, running from medikit to medikit on a loop until her recall is done for another safe attempt at an assassination.