Azargo did an anylsis about the ON1 chassis and it's problems at length on the official forums. I found his points pretty accurate and he mirrors some points which were already discussed within our unit. As this would probably be lost quickly in the abyss the official forums are I decided to 'safe' his analysis and thoughts here. Feel free to add as well.
I actually perfer a gauss in the torso, as it lets me place my shots better than an arm mounted Gauss. But I've been pilotiong my Atlas for days now, so I'm much better at it than I used to be. I've actually managed to kill an Orion with a side torso shot, but I did notice a few of my shot hitting the center, when they should have been hitting the side. Overall, it does need something to make it comparable to an atlas, But I'm not sure what that would be, as I don't mind the hard point selection.
My only complaint of the Orion is its center torso hitbox is too easy to hit. PGI needs to give the Orion the Kintaro treatment if you follow me on this.
First thing I noticed in the Orion were the soil shots. On multiple occasions, even when I could swear that I had a beautiful and clear shot at an enemy CT, it would hit an ant hill a few hundred meters away at the enemy's feet. Drives me crazy. Otherwise, my experience in it has been amazingly average. I think I'll start to really enjoy it after some tweaking on my loadout.
I bought a ON1-K variant and I must say that this mech has some potential, but still CT needs a fix. With that in mind I think it can be the best mech in the heavy class and with that big tonnage it can even be a good competition against Assaults like Stalker or Awesome...
It's on par with the Awesome, but definitely not the best Heavy. Better than Dragon or Quickdraw, but i perform better with Jagers and Phracts.
It's a hunchback style brawler it sucks at long range due to its huge ct and size itself so it's gotta be as fast as a normal brawling heavy mech (73.4 kph good enough) which doesn't leave enough room for huge weapons unless using an XL engine leaving it to use a lot of smaller weapons such as ac5's and importantly srms.