Yeah, tactics play an important part in WT's battles. Yet, they play only one part in them. Like we have seen in the mock duel between Kazama and Osamu - 20 loses and only one draw. 20 loses due the overwhemling power, ability, skills, experience and equipment Kazama got over Osamu. Yet Osamu also had all that yet compared to Kazama it obviously was not even close enough. Add the right tactic to it to stop some of Kazama's abilities like his speed and render some of his equipment useless like the Chamelopn boddy opt trigger and suddenly the battle became a bit more even.
Especially when Osamu lead Kazma to believe he had only a simple plan while it was more complex and took his opponent by surprise thus giving him a chance to land a hit on a as good as zero distance.
And in other battles as well. Izumi, Yoneya and Midorikawa with the B-agents against Ranbanein used the shield function to shield another agent but them, something we have seen Tokieda do in the battle against Miwa squad to protect Jun Arashiyama when the HQ elites tried to kill Yuuma/rob him of his BT.
So Osamu will continue to struggle given his battle power but he will have a better chance by using the right tactics he will learn during the course of this manga. PLus with a team of such strong teammates his wit and cunning becomes more important as he has to not only think about himself but also how to make best use of his comrades abilities and battle power.
Which leads me to a new spoiler as raw for chapter 85 is out.^^
Looks like the aftermath of the Aftokrator Invasion arc is over and we enter a new one! A very important one given Chika's, Osamu's and Yuuma's goals.
