This isn't what you asked for (insofar as it's not a tank build), but I wondered, "Could I come up with a tactics-focused S&B majority-ftr build which still had good DPS?"
The answer was, "I dunno, but let's try it anyway!"
Rather than pally or warlock, I went bard splash for Swashbuckler: Swashbuckling + Skirmisher + Elegant Footwork + Low Blow adds DPS, survivability, and CC for 4 lvls and 21 APs. Which in turn leaves 16 lvls free for ftr to take the new DC feats. Uses rapiers so Keen Edge will stack w/Swashbuckling.
Code:
Kensei Skirmisher
16/4 Fighter/Bard
True Neutral Human
Level Order
1. Bard 6. Fighter 11. Fighter 16. Fighter
2. Bard 7. Fighter 12. Fighter 17. Fighter
3. Bard 8. Fighter 13. Fighter 18. Fighter
4. Fighter 9. Fighter 14. Fighter 19. Fighter
5. Fighter 10. Fighter 15. Fighter 20. Bard
Stats
36pt Tome Level Up
---- ---- --------
Strength 18 +6 4: STR
Dexterity 8 +6 8: STR
Constitution 16 +6 12: STR
Intelligence 16 +6 16: STR
Wisdom 8 +6 20: STR
Charisma 8 +6 24: STR
28: STR
Skills
B B B F F F F F F F F F F F F F F F F B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
------------------------------------------------------------
Perform 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 23
UMD 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 23
Balance 4 1 1 1 7
------------------------------------------------------------
12 3 3 6 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 2
40 10 10 6 6 6 7 7 7 7 7 7 7 7 8 8 8 8 8 12
Feats
1 : Single Weapon Fighting
1 Human : Shield Mastery
3 : Power Attack
4 Fighter: Cleave
5 Fighter: Great Cleave
6 : Weapon Focus: Piercing
7 Fighter: Improved Single Weapon Fighting
9 : Improved Critical: Piercing
9 Fighter: Improved Shield Mastery
11 Fighter: Weapon Specialization: Piercing
12 : Greater Single Weapon Fighting
13 Fighter: Greater Weapon Focus: Piercing
15 : Tactical Mastery
15 Fighter: Stunning Blow
17 Fighter: Tactical Combatant
18 : Insightful Reflexes
19 Fighter: Tactical Supremacy
21 Epic : Overwhelming Critical
24 Epic : Combat Expertise
26 Destiny: Perfect Single Weapon Fighting
27 Epic : Improved Trip
28 Destiny: Tactician
29 Destiny: Dire Charge
30 : Tactical Training
30 Legend : Scion of the Astral Plane
Enhancements (80 AP)
Human (1 AP)
Swashbuckler (21 AP)
- Confidence, Swashbuckling
- Blow By Blow: Melee III, Tavern Shanties II
- Sword Dance II
- Elegant Footwork, Skirmisher, Resonant Arms III
- Low Blow
Kensei (31 AP)
- Kensei Focus: Light Blades, Spiritual Bond, Strike with No Thought, Power Surge
- Extra Action Boost II, Weapon Group Specialization, Haste Boost III
- Tactics III, Weapon Group Specialization
- Critical Accuracy I, Weapon Group Specialization, Strength
- Weapon Group Specialization, Strength
- Keen Edge
Stalwart Defender (13 AP)
- Toughness, Stalwart Defense
- Item Defense I, Durable Defense III
- Resilient Defense III, Instinctive Defense I
- Strong Defense III
Vanguard (7 AP)
- To the Fore!
- Shield Specialization, Shield Smash II
- Stunning Shield II
Harper Agent (7 AP)
- Agent of Good I
- Harper Enchantment, Traveler's Toughness II
- Know the Angles II
Destiny (24 AP)
Legendary Dreadnought
- Legendary Tactics III, Extra Action Boost III, Strength
- Momentum Swing III, Imp. Power Attack, Strength
- Lay Waste
- Volcano's Edge
- Advancing Blows, Devastating Critical
- Master's Blitz
Twists of Fate (31 fate points)
- Grim Precision (Tier 3 Shadowdancer)
- Reign (Tier 3 Fatesinger)
- Hail of Blows (Tier 2 Flowers)
- Legendary Shield Mastery (Tier 2 Sentinel)
Gains +18 STR (Power Surge + Strong Defense + enhs + LD) and another +32 to DCs (tactics feats + Kensei + LD + Tactician + Scion of the Astral Plane), if I'm adding right. That's not counting the DC bonus from KtA, too. Final crit profile on rapiers will be 14-18/x3 19-20/x5 (Overwhelming Crit + Devastating Crit); add +1x multiplier if using Balizarde. +25% doublestrike from LSM + Hail of Blows + SotAP + SB & Kensei cores.
Problem with spending 21 APs in Swashie is not enough APs for VG and SD as I would like; but you could drop Swashie to 11-13 APs (Skirmisher + maybe Elegant Footwork) to beef up the other two.
Listed Twists are DPS-focused; LSM is the only must-have, IMO, so adjust as you see fit if you need, e.g., more self-healing or higher saves. Reign + PSWF is my just-for-fun combo. Plus Reign seemed like a better use of bard songs than weaksauce Inspire Courage. If you don't plan to take Reign, then you might as well swap PSWF for PTWF for extra +5% doublestrike.