Hi everyone! What a great response, thank you all for taking the time to help me 
I didn’t want to bomb you with a long post, but sometimes details are necessary so I will give a bit more in depth description of how the OT will be used.
We do livesets. In short my mate takes care of live hadware synth playing and also triggering recorded synth parts (like basslines, pads etc) in Ableton. I do mostly drums: really working the Tempest as an instrument, manipulating the beats and arranging on the spot. I now use a Rytm MK2 as my 2nd drummachine to give more flavour to my drumpallete but also complement the Tempest (and vice versa). I do the same with the Rytm as the Tempest: muting parts (arranging) and manipulating the sounds, fooling around with scenes and effects.
I want to replace the Rytm by the OT. I am not very fond of the analog engines for our sound and would like to be able to use sampled stuff more. So Tempest will do analog stuff and OT sampled. With sampled I mean: home recorded loops of a hihat, acoustic snare, snipplets of fieldrecordings, sliced up sampled vinyl.
For a song I would have some analog percussion/beat stuff going on in the Tempest and the OT would look something like this:
Track 1: home recorded acoustic hihat loop
Track 2: one-shot conga sample
Track 3: field recording
Track 4: one shot open hihat sample
Track 5: sliced up recording of a beat from vinyl (32 bars)
Etc.
Brining the Tempest and the OT together will be my full beat. Then I can mute and unmute and manipulate everything thus performing, improvising and arranging on the spot.
Ps. We change tempos during our livesets and a song that we play at 124 bpm one weekend can be played at 126 the next one. So being flex for rhythmic loops is important (I guess?)
Hope this clears my situation up! 
Before I tried an MPC5000 for this situation (too heavy for flying and sync problems), Maschine (didnt like the sterile sound and the cpu it consumed from our laptop) and now Rytm (love the workflow, but analog overkill: want to slice and sample to add different flavor next to Tempest).
Every song we play will have its own samples, loops etc. So I was afraid when I saw the sample slot limitations that after about (128 divided by 8) it will be full. We write a lot of music so we can have a fresh liveset every weekend or so. But it would be great to be able to recall every song in a big project so we can always blend some new stuff with some classic material. Either by loading in a selection of songs into a project right before the weekend or being able to have one big project where everything is inside 
I really hope this helped and not made it more vague haha. Thanks a lot in advance you all!