My recommend is kind of weak - for either - but is based upon several questions:
- Based upon the OTU?
- Is it true that " Low Endurance does not make you easily KO'd"?
- Ref likes table-driven combat?
- Do you want Armor to make you harder to hit (instead of reducing damage)?
- Do you want custom resolution for specific skills?
If the answer to all of these is yes, TTB is the way to go.
If you want to run in the OTU, you need to add Bk5.
If the answer to #5 is no- go any edition but CT. Or port a task system into CT.
Why? Because CT is rules by specific inclusions, with 4 different approaches used in the line, and 3 in the core rules... counting the adventures therein.
- 2d+mods for ≥N
- Xd for stat+mods or less
- 2d + mods for ≤N
- Roll on table for result.
CT requires the ref to make throws up fairly willy-nilly, but has specific rules in most skills' descriptions. Every Ref's game felt different because of this. It's flexible, but that's not always good.
If the answer to #2, #3, or #4 is no... CT combat is going to be a problem. MGT is a no on all three of those... or, you can do the CT thing and mix-n-match. Some people make the armor mod from the CT table into a damage reduction (either per die or per hit, pick); others (myself included) used Striker/AHL either straight or hybridized - there is a JTAS Article on merging CT Bk 1 and Striker that hybridizes one way; MT hybridized a second, and I and most people I knew playing CT hybridized a third.
(The JTAS 16 version is convoluted, slightly, but the damage conversion is easy: keep CT B1/B4/S4 damage values, striker Pen's, and on the armor roll, the amount below 8 is the negative modifier per die of damage.)
(My approach was to note that a light is 3D, a severe is 6D; we can presume a kill is either 9D or 12D... and to note 4-7 is light, 8-11 is serious, and 12+ is deadly... I used a table, myself...)
Roll | ≤3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
Damage | 0 | 1D | 2D | 3D | 4D | 5D | 6D | 8D | 10D | 12D | 14D | 16D | 18D |
CT is good for tinkering with.
MGT is great for tinkering with, and you can legally convert it to a new game and share it. But it's not great for the OTU.