Problems found in BMM v. 7.0 PRE errata document. Just New Additions section for now. I may look through Full Errata section to see if there are any disparities between it and the New Additions sections later, however I can make no promises about when or even if I'll do it. Unless specified otherwise page numbers below refer to pages in BMM, not the errata document.
p. 37, Death From Above Attacks change
change "in the Weapon Attack Phase." to "before the Physical Attack Phase"
A pilot performing a DFA may become unconscious during Movement Phase - for example as a result of a point-blank shot by a hidden 'Mech (see p. 82).p. 45, Critical Hits, Hardened Armor change
The way the new rule is phrased it is unclear if the -2 to the roll is supposed to happen when inner structure is damaged and the 'Mech no longer has armor at the location, when a through armor crit happens (due to a natural 2 in hit location table or use of armor-piercing AC rounds - only p. 114 makes it clear that hardened armor completely negates the effect of AP ammo), or any combination of the above.
p. 51 Effects of Heat
What does this change is supposed to mean in practice? That an Inferno missile explosion due to 'Mech's internal heat and engine hits caused by internal explosions of "regular" ammo don't affect the 'Mech until after the Heat Phase in which it accrued? And does a 'Mech that suffered one or two Engine Crits during a Heat Phase increase its internal heat level by 5 or 10 at the end of the phase and just doesn't for example suffer a higher shutdown chance during the phase, or does it just not increase its internal heat for such crits during the phase? IMHO these (especially the question of engine crits suffered during heat phase) need to be clarified.
p. 61 Clearing Woods or Jungle, Plasma Weapons
Since Plasma Cannon has no Damage Value, change "Plasma Weapons" to "Plasma Rifle" and plural to singular later in the inserted sentence.Edited in after TW 11.0 PRE was published: This one should probably be handled like Clearing Woods in the latest TW errata document, with the caveat about Plasma Rifles mentioned under Clearing Woods (p. 112) in the post directly below this one.
p. 68 Skidding
Maybe change "(not MP spent, so facing changes are ignored)" to just "(not MP spent)", since you would also ignore any MP spent for difficult terrain, standing up etc. Singling out facing changes only confuses the reader.
p. 70 (p. 20 of the errata document only)
Swap order in which Skidding (p. 70) and Interrupting A Skid (p. 70) entries appear on p. 20 of the errata document.
p. 70, Interrupting A Skid, point 2.
Maybe change "[...] taking normal skidding damage for entering that hex [...]" to something like "[...] taking normal skidding or falling damage (see Accidental Falls, above) for entering that hex [...]" to make it clear that you still don't count the water hex for the purposes of skidding damage if the bottom of the hex is two or more levels below previous hex's level.
p. 70, Skidding or Collisions with Stationary Objects
After
"Before “Collisions with Stationary Objects”, insert the following subsection:
COLLISIONS—GENERAL[...]"
and before the changes to collisions withe the buildings rules add a note to to delete the first three paragraphs of Collisions with Stationary Buildings sections, as their contents are covered in the new "Collisions - General" section.
Also I assume that some changes to Collisions with Stationary Objects section will end up looking like they were describe in "Resolving collisions during a skid" thread, and some of them (like changing "
Buildings:" title to "
Empty Buildings:" and changes to the two paragraphs that directly follow) were just cut from the errata document since they were just minor tweaks to clarify things a bit and to get space needed for other things, and not outright rules changes?
p. 71 Collisions With ’Mechs
I guess that, like with Collisions with Stationary Objects above, some changes from the "Resolving collisions during a skid" thread did not end up in Collisions With ’Mechs entry in the errata document just to save space, and will be included in the new BMM printing? If so, then I would suggest to put the change that clarifies that to successfully dodge an unintentional charge, the target 'Mech needs to not only make its PSR, but also successfully leave its hex (see second paragraph of the Collisions with 'Mechs section of the draft in the thread mentioned above) in the errata document.
p. 72 Collisions Within Buildings (p. 21 of the errata document only)
Change the section name to "Combat Within Buildings".
p. 78 Battlefield Support Table
If you end up implementing the change to p. 76 Offensive Aerospace Support (Strikes) suggested near the end of this post, you will also need to make it in Light Strike and Heavy Strike lines of the Battlefield Support Table.
p. 81 Forced Withdrawal
Maybe reword the change to make it clear that you can't make "five steps away from the home edge, one step back", but actually need to end withdrawing 'Mech's move at least closer to the home edge than you began? And of course if such move is impossible, the 'Mech should move in such a way that would make closing to its home edge as soon as possible in subsequent turns (though I don't think that the rules need to say that part explicitly, and leave the exact interpretation to player's judgement - especially because some maps may make exact interpretation of this rule tricky - for example if you need to temporarily move away from your home edge in order to get around some obstacle on your way back - possible in some official canyon maps, for example).
p. 116 Supercharger
"
Under “Game Rules”, replace the first bullet point with the following:", change to "
Under “Game Rules”, replace the second bullet point with the following:"
p. 146
Remember to copy the change from Battlefield Support Table on p. 78 (see above, and p. 76 Offensive Aerospace Support (Strikes) below) here if if you end up doing it there.
Things with no entry in the document:
Single line edited in after TW 11.0 PRE publication: Most of the problems with both TW and BMM listed in the second paragraph of the post directly below this one.
pp. 36, 37, Location after Charge/DFA sections
You may want to copy the changes to these sections from AGoAC manual errata v. 8.0. (That is - change "If the charge/DFA succeeds[...]" to "If the charge/DFA succeeds and the attacker was not destroyed[...]").
p. 76 Offensive Aerospace Support (Strikes)
The entry for Offensive Aerospace Support (Strafing) on p. 76 says to add [DE] to the section title. I believe a similar change may need to be made to Offensive Aerospace Support (Strikes) section to cover situations when the target has Reflective Armor for example. (Though I may be wrong, since according to pp. 243-245 TW, unlike Strafing Attack, Strikes may be conducted with non-energy weapons).
Finally, it looks like Xotl missed my last post in the "Resolving collisions during a skid" thread - the BMM and TW rules (possibly on pp. 25 BM, 107 TW) need to specify if hexes by which a unit was displaced or skidded count towards its TMM. Only sideslips are covered in TW (per p. 67 TW hexes sideslipped do count towards TMM), and I'm unsure if skids and displacement should follow the sideslip rules in this regard, especially since sideslipping units don't get an extra +2 to be hit that skidding units do. By the way, the rule about not counting sideslipped hexes towards TMM should IMHO be repeated on p. 107 TW, space permitting of course.