I just played my first game of BT for 7 months. I think it went pretty well.
This was supposed to be a "junk army" with some of the worst/least cost effective units that I happened to have piled in but not meaninglessly - I still wanted to make the combination work as a formation...
Warhammer WHM-8M (light gauss, twin erppc, overheats like hell)
Crusader CRD-2R
Wolverine WVR-11M (supercharger --> 5/10/5, dual SNPPC(!), great but of very high cost)
Shadow Hawk SHD-7M (light gauss, lrm15, 1 weapon of each type... would be great but has ammo for just 8 turns and if it wernt vulnerable)
Quickdraw QKD-5M (everyone knows this mek! Its so horrible!
MWL has improved it a lot but it still retains the 2 rear-facing medium lasers)
Hunchback HBK-6N
Hover APC + IS Standard BA
(total 9600 BV)
When I saw the map and the foe I threw away all hope: volcanic plains with large but flat hills providing excellent cover for low vehicles and prone meks... or for the Word of Blake C3i army. A Toyama with a 3/4 pilot was the shooter, while the leader of the formation, a Grand Crusader, spotted for it. Lightray was his flanker, Marauder MAD-9M general purpose guy, tiny Stinger harasser and a heavy attack helicopter carried battle armor. I didnt have a single anti-aircraft weapon with me.
I decided the best course of action would be to rush the enemy ASAP into a melee, leaving Warhammer to snipe. This failed spectacularly: the helicopter dropped battle armor right next to my "snipers", my Hunchback lost its HD and died away to the Toyama's LRM fire only without the enemy even bothering to concentrate his fire on it, and his TSM-equipped Grand Crusader was closing in.
I began falling back, rotating damage as well as I could... And I managed to take out the Lightray with concentrated effort by Crusader, Shadow Hawk, Warhammer and the Hover APC. The following 10 turns were very difficult: I had to walk backwards to attempt to keep most of the enemy out of effective range or at least make the C3-Sniper-hero-mechwarrior-Toyama move to hinder his aim, while I concentrated my own fire as well as I could.
The main battle phase was as good as I could get: a grand melee on an open field with the Toyama out of range for a turn and Marauder out of effective range for 2 turns. My Crusader was crippled by ammunition explosion(and was finished off only 10 turns later), APC was immobilized quickly and my HQ-Warhammer was mauled badly. The enemy Grabd Crusader kicked my Quickdraw in half... In the end I managed to prolong the Warhammer's fate by 2 turns by keeping it prone and not even attempting to stand him up. This bought time for the Shadow Hawk - Wolverine strike pair to finally remove the Grand Crusader's side torso (it overheated and shut down) and then finish it off by shooting off the other too. The Shadowhawk had earlier shot down the helicopter with a lucky missile burst. Stinger was destroyed immediately when it assaulted straight towards my line. Enemy BA was tough to hit thanks to its mimetic armor, but the Quickdraw reduced the squad which was finally eliminated by my own Battle Armor and the Shadow Hawk.
The final showdown was between the survivors: my Shadow Hawk and Wolverine (both damaged and SHD very low on ammo) versus enemy Toyama(low on gauss and lrm ammo) and his Marauder, both intact. Only thing I could do was to run around the enemy meks at a distance, abuse the Wolverine's SNPPCs' short range of 9 and spread the damage out as well as possible and harass with battle armor(the enemy refused to shoot at them for some reason). After about 8 turns the enemy realized what I was up to and moved his meks together, as his Marauder's ERLLs outranged me badly.
At this point I charged, and let the SHD take the beating first, which it did. The Wolverine jumped next to the Marauder(to hit its damaged right side torso), mauled it badly... The Marauder fell, and KO'd itself while attempting to get up(pilot was already wounded from an SRM hit). My Wolverine jumped back to fire at 9 hex while the helpless Toyama chased the fleeing, damaged and mostly ammoless Shadow Hawk. Out of Gauss Rifle and LRM20 ammunition, the Toyama just didnt have enough firepower or reach left to kill my 2 meks quick enough with just 2 medium-VSP-lasers.
When an SNPPC hit removed the Marauder's side torso and destroyed it, the enemy gave up. And I expected to lose the battle within 10 turns!