Well, I think you're going to have to get someone who is better at Battletech than me to play-test these rules. :-\
Binary Creation
Okay! All went pretty well here! I took 10 mechwarriors; I gave the first -1/-1 to G/P, and the second -1 to one of those as a coin flip for the officer; mercs get 4 officers, I figured I'd get two. So! I rolled, and my star captain got a bloodname, and rolled Sniper and Jumping Jill for the specials! This was pretty rad. After creation, my force was (and I had to ****** around building a quick-and-dirty RAT, since I decided to try Star Adders circa 3045):
1st Star (Scout)
Star Captain Antonio McMillan, 2/3 w/ Sniper and Jumping Jill, Dragonfly A
Mechwarrior Pushpanjali, 4/5, Arctic Cheetah D
Mechwarrior Yura, 4/5, Fire Moth Prime
Mechwarrior Myong, 3/4, Kit Fox B
Mechwarrior Alberto, 4/5, Puma A
Weight: 150 tons (Light Star), BV: 9,231
2nd Star (Battle)
Star Commander Tony, 2/4, Nova Prime
Mechwarrior Panthea, 3/4, Hellbringer Prime
Mechwarrior Zero, 3/4, Stormcrow Prime
Mechwarrior Thiongo, 4/5, Shadow Cat Prime
Mechwarrior Majdiyya, 4/5, Adder Prime
Weight: 250 tons (Medium star), BV: 15,245
For techs, I rolled 1 vet, 5 regular, 3 green, with 1 regular doctor as my support. That brought me to a "C" rating per the dragoon rating, but I sighed and awarded myself a Lion dropship because it'd be kind of stupid for a young bloodnamed star captain with all omnis to be a second line force. That made me a "B", so, hey, front line!
Missions
I rolled 1d6-1 and got 3 'contracts'/missions. One Garrison against hte Jade Falcons, facing a Veteran Solahma mech force for... 18 months. One planetary assault on the Coyotes against a Veteran 2nd line mech force for 9 months, and a pirate hunt against Regular bandits for 6 months. I wasn't sure whether 'veteran' meant I should be facing an average of 3/4 pilots or 2/3 pilots, but I decided on the latter.
For the rest of creation, I decided a lot of these were kind of meaningless. Command? Independent, since I'm not going to let anybody horn in on my fight. Salvage? Full, because salvage goes to the winner. Support? The hell with that, full straight support makes more sense than anything. Transport? Full. I'm not sure if you want to keep all those, because some of them are nonsensical for the clans... and I have to say overall I am not particularly comfortable with using C-bills for stuff. I threw up my hands and ignored it for now, and just made it a "New Mission" in MekHQ instead of "New Contract". Oh, and I accepted the planetary assault, because it was shorter- seriously, 9 months?! and not against Solahma who, even if I beat them, I'd probably lose the mission due to honor.
So! I got to Foster on Thursday 2/13/3045, and promptly rolled no objectives. Okay! So fast forward to March 1st, and got 3 objectives! The first 2 each had an importance of 1 and the last 4, so I bid each of my stars to one of the first two objectives. The dice rolls told me the defenders had opted to retain 4 points for each bid, so knowing I was going to be fighting MUCH better pilots on average I kept my full star for each.
So! First battle roll on Monday 3/3/3045 (I got no special events on the first). Battle star rolled nothing. Scout star rolled The Chase (Att), which... uh, if this is a trial of possession, does that fight type really make sense? A lot of them don't seem to, so I just decided, why not make it a Probe(Att)? This way I'd basically only have to kill 1 before losing 2. The star roll came out that I would be facing 4 medium mechs, and other rolls showed me a 40x20 Sandy-Hills map at dusk. Okay. So, I would be bringing my Scout Star vs:
Dragonfly B, 2/3
Dragonfly B, 2/5
Dragonfly Prime, 2/3
Goshawk 2, 4/4
Total BV: 10,819. So the BV ratio was 85.3%, meaning I start 2 points in the hole for this trial. Theoretically, then, if I won this battle in glorious fashion and annihilated my enemy in a single fight, my score for the trial would be:
-2 (not a low enough BV, dishonorable)
+1 for the enemy being a Veteran
+1 for getting one battle victory
Total: 0, trial defeat
So, knowing that I literally could not possibly win my trial this mission and that even if I won, if I granted hegira I would lose and if I fought them to the death I would lose, I kinda knew going in this was going to be unpleasant.
Happily, that turns out not to matter, since I got my face stomped into the mud.
First time? I foolishly tried to hold to zell, and got ultramurdered by the bot who didn't care. Well, I figured, I could cut that whole "zell" thing out since the bot didn't care anyway, and tried again! Hoo boy, fighting those 2-gunnery clan pilots is fun fun fun. I tried three times, and didn't "win" per the rules once (I lost 2 mechs before taking 1 down, every time). For funsies each time I tried to fight to the death, and well, once I managed to kill 2 and cripple 1 out of 4 before I was annihilated. The other times were... worse. And this is with a BV ratio that was bad enough that I couldn't win in one fight.
So, in conclusion, to be able to playtest this I'd have to mangle it with lenient house rules to the point where it wouldn't actually be playtesting your rules, because I am not very good at Battletech. Sorry. :-[