Hello again, I wanted to post a followup since I finally beat Oda. I tried him on Normal and Very Hard, and on Normal he wasn't that difficult. Very Hard was another story.
Essentially, I fought him on Normal, then Very Hard, then went back to Normal. I beat him both times on Normal but didn't beat him the first time on Very Hard. The second fight in Normal glitched and he did a lot more damage, but by this time I knew his behavior better and did damage to him a lot faster. All this was at level 60 having completed most of Phantom Liberty (I skipped the car missions):
A cyberdeck was very useful against him, even as only a part-time netrunner. Stuff like Disable Cyberware worked pretty well. When I hit him with 8 stacks he actually fell flat on the floor, allowing me to empty an entire mag into him unopposed. Of course that's only 4 shots with the Burya but still, the thing headshots for over 3k damage now, so that's nothing to laugh at (no, I didn't chain 4 headshots, though I should have). There were other quickhacks like Cripple Movement that I should have used but didn't (oh well).
With a Sandevistan instead, I get the impression that the best thing to do is just circle strafe him.
In terms of his damage output, on Normal he was only doing 50-60 damage per hit while I was crouched out in the open (for extra mitigation). The bleed effects were a bit much, but nothing Bounce Back Mk. 5 couldn't handle (Adrenaline was also very useful here). On Very Hard and in my second attempt on Normal, he was hitting much harder, maybe 100 per hit plus a much nastier bleed? Tanking off his hits is not a great strategy though since it's much harder to land headshots while he's moving. For some reason I was mostly unable to get anything but normal bodyshots. For this reason, Cockatrice optics might help a lot for the extra crit chance. As it stands I rely on Deadeye for automatic headshot crits, which is of no value when I'm only landing limp ~350 damage body shots instead.
In any case I think I could have beaten him on Very Hard had I switched up my quickhacks a little and aimed more-accurately during the fight. He was not so weak that I could wipe him out in just one attempt. He's pretty rough, but I don't see that a pistol build specifically is bad against him versus any other kind of build. Even with extreme armor + mitigation, his damage on Very Hard is nasty enough that I don't think anyone short of a Berserk build could tank him off indefinitely, and I have my doubts that a Berserk build would do well once their first Berserk wore off. If there were adds like in the Smasher fight then Berserk could do better, but . . .
edit: also, the camo trick to end fights from Phantom Liberty does work. You can vanish right in front of him and take him out of combat, giving you one free headshot, which can put you at a major advantage depending on how much damage you're doing. It also can buy you extra time to hit him with quickhacks or set up something else. Not sure how much that would help you with a Sandevistan build, but it'll at least buy you some time to use a healing item.
Post edited October 11, 2023 by mna99