Considering the rules for subfounding chapters choosing a chapter tactic, is it correct that detachments using a FW
marine character like Tybros cannot choose to use the rules for Blood Angels, Dark Angels or Space Wolves? Furthermore can chapters like charcarodons choose only one of the chapter tactics available in codex space marines?
Actually, if you pick a FW
character you cannot, RaW
, benefit from any Chapter Tactic, because they do not have a legal keyword to make the detachment a Space Marines detachment, and even if you could RaW
Chapter Tactics do not work on Successor Chapters, so it's a moot discussion anyway.
To fully explain the above two points:
1) The SM
Codex: Adeptus Astartes Space Marines, Page 194 wrote:In the rules described in this section we often refer to ‘Space Marines units’. This is shorthand for any ADEPTUS ASTARTES unit that has one of the following Faction keywords: <CHAPTER>, ULTRAMARINES, IMPERIAL FISTS, SALAMANDERS, WHITE SCARS, RAVEN GUARD, IRON HANDS, CRIMSON FISTS or BLACK TEMPLARS. A Space Marines Detachment is therefore one which only includes units with one of these keywords.
Codex: Adeptus Astartes Space Marines, Page 195 wrote:If your army is Battle-forged, all INFANTRY, BIKER and DREADNOUGHT units in a Space Marines Detachment gain a Chapter Tactic, so long as every unit in that Detachment is drawn from the same Chapter.
My own emphasis added in yellow. Now, take a Space Marine Character from the FW
Index, say Tyberos the Red Wake. He has the Faction Keywords "IMPERIUM, ADEPTUS ASTARTES, CARCHARODONS". None of those keywords are on the list on page 194 of Codex: Adeptus Astartes Space Marines, thus any detachment with Tyberos the Red Wake in it cannot, by definition, be a Space Marines detachment. While you can choose CARCHARODONS to replace <CHAPTER>, Tyberos the Red Wake himself does not have <CHAPTER>.
2) Page 195 of Codex: Adeptus Astartes Space Marines lists the various Chapter Tactics. However, each Chapter Tactic has a locked in keyword, with no permission to change the keyword for successors as Stratagems do on page 196. Thus, if you pick NOVAMARINES as your <CHAPTER> and pick the Ultramarines Chapter Tactic, your NOVAMARINES now all have a rule saying "Add 1 to the Leadership characteristic of all ULTRAMARINES models with this tactic.", which means the rule doesn't benefit NOVAMARINES.
If you ignore that, well then anything goes since you're making House Rules anyway, so feel free to do whatever.
Codex says you must consult the background fluff to determine what Trait you should use (e.g. Raptors must use the Raven Guard trait).
Edit: Shadowspear has fixed the issue of Successor Chapter traits not working.