These have probably been reported, but since any compiled errata got lost in the board migration I will post everything I have found regarding the mechs.
== RS3060 unabridged, pdf ==
Cossack C-SK1, page 103:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Kabuto KBO-7A, page 105:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Garm GRM-01A, page 119:
Has one point of unallocated armor, and has a BV missmatch with MUL 698 vs 701.
Suggested solution:
Add one point of armor to center torso, and increase BV to 701.
(SSW 0.6.76 and MUL used for new BV)
Garm GRM-01B, page 121:
Has one point of unallocated armor, and has a BV missmatch with MUL 931 vs 934.
Suggested solution:
Add one point of armor to center torso, and increase BV to 934.
(SSW 0.6.76 and MUL used for new BV)
Blitzkrieg BTZ-3F, page 134:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Shugenja SJA-7D, page 172:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Black Watch BKW-7R, page 177:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Tai-sho TSH-7S, page 179:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Hauptmann HA1-OC, page 193:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Cougar H, page 221:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Great Wyrm 2, page 232:
Side torsos are two points over maximum armor.
Center torso is four points over maximum armor.
Suggested solution:
Reduce rear armor to 4/6/4 and increase leg armor to 22. This keeps the total armor and BV constant.
Stalking Spider 3, page 237:
Lacks an index entry.
Suggested solution:
Add it.
Ha Otoko HKO-1C, page 257:
Record sheet gives era: Civil War, MUL gives: Clan Invasion.
Suggested solution:
Change Era to Clan Invasion.
Nova Cat G, page 267:
Missing Artemis IV fire control in the Weapons & Equipment Inventory box, even if said system is shown in the critical hit table.
Suggested solution:
Add Artemis IV to all three LRM 20 launchers in the info-box.
Blood Asp F, page 280:
Listed as advanced tech, even if it mount no such tech.
Suggested solution:
Remove (Advanced) from 'Mech Data box.