Hi Wargameing Dev team, I would like to suggest a complete Pan-America destroyer line. However I came in 2 problems: 1. I cant find a suitable T1 for the Pan- America gunboat for the tech tree and need help on this. 2. Pan-America needs a unique gimmick or play style (Pan-Asia Deep-Water torpedo, British ambush and flee destroyer, German tanky destroyers, Russian suicide tactic,  Commonwealth creep smoke). May it be armament, consumable, or their stats.   However I was able to complete a destroyer line for Pan-America. I hope you like them. Here is what I have come up with when looking around the internet: Main Line DD T2 
Alexandrino de Alenca / Maranhão (BR)
Originally Porpoise "K-Class 1913" (UK) Armament:
3 × QF 4 in (102 mm) Mark IV guns (3 x 1)
1 × QF 2 pdr (40 mm) pom-pom Mk. II (1 x 1)
2 × 21 in (533 mm) torpedoes (2 x 1)
T3 
Almirante Villiar (PE)
Originally Miklucho Maklai "Orfey Vlass" (RU) Armament:
4 × 4.0 in (102 mm)/60 Pattern 1911 guns (4 x 1)
1 × QF 2 pdr (40 mm) pom-pom Mk. II (1 x 1)
2 × 0.30 in (7.62 mm) Maxim machine guns (2 x 1)
9 × 18 in (450 mm) torpedo tubes (3 x 3) Note: Miklucho Maklai (RU) -> Vambola (EE) -> Almirante Villiar (PE)
See "Pan-Europe Destroyer Tech Tree Suggestion"
T4 
Almirante Guise (PE)
Originally Avtroil "Izyaslav Class" (RU) Armament:
5 × 4.0 in (102 mm)/60 Pattern 1911 guns (5 x 1)
1 x 2.5 in (63.3 mm) Model 1916 (1 x 1) / 4 x 1.8 in (45 mm) 21-K (4 x 1)
2 × 0.30 in (7.62 mm) Maxim machine guns (2 x 1)
9 × 18 in (450 mm) torpedo tubes (3 x 3) Note: Avtroil (RU) -> Lennuk (EE) -> Almirante Guise (PE)
See "Pan-Europe Destroyer Tech Tree Suggestion"
T5 
Mendoza (AR)
Based on "Scott Class" (UK) Armament:
5 × 4.7 in (120 mm) QF Mark IX guns (5 x 1)
1 × 3 in (76 mm) AA gun
2 × QF 2 pdr (40 mm) pom-pom Mk. II (2 x 1) ? Need more info
6 × 21 in (533 mm) torpedo tubes (2 x 3) or Juan de Garay (AR)
Originally Alcala Galiano "Churruca Class" (ES) Armament:
5 × 4.7 in (120 mm)/45 guns (5 x 1)
1 × 3 in (76 mm) AA guns (1 x 1)
6 × 21 in (533 mm) torpedo tubes (2 x 3) or Antioquia (CO)
Originally Douro "Douro Class" (PT) Armament:
4 - 4.7 in (120 mm)/45 guns (4 x 1)
2 - 2 pdr (40 mm) AA guns (2 x 1)
8 - 21 in (533 mm) torpedo tubes (2 x 4)
T6
Buenos Aires (AR)
Based on G-Class or Gallant (UK) Armament:
4 × 4.7 in (120 mm) QF Mark IX guns (4 × 1)
8 × 0.50 in (12.7 mm) Vickers machine guns (2 x 4)
8 × 21 in (533 mm) torpedo tubes (2 × 4)
T7
Amazonas (BR)
Based on H-Class (UK) but armed with US 5 in (127 mm) / 38 guns Armament:
4 x 5 in (127 mm)/38 guns (4 x 1)
2 × 1.6 in (40 mm) Bofors guns (1 x 2) ? Need more info
4 × 0.79 in (20 mm) Oerlikon  guns (4 x 1)
8 × 21 in (533 mm) torpedo tubes (2 × 4)
T8
Mariz e Barros (BR)
Based on Mahan Class (US) but only has 2 torpedo tube insted of 3 Note: I did not use Marcilio Diaz because she may be used as a T10 ship with the same name. Armament:
5 × 5 in (127 mm)/38 guns (5 x 1)
4 × 1.6 in (40 mm) Bofors guns (2 x 2) 
4 × 0.79 in (20 mm) Oerlikon  guns (4 x 1)
8 × 21 in (533 mm) torpedo tubes (2 × 4)
US Ships sold to Pan America
T9
Blanco Encalada (CL)
Originally USS Wadleigh "Fletcher Class" (US)
or
Cuitláhuac (MX)
Originally USS John Rogers "Fletcher Class" (US) Armament:
5 × 5 inch (127 mm)/38 guns (5 x 1)
10 × 1.6 in (40 mm) Bofors guns (5 x 2)
7–12 × 0.79 in (20 mm) Oerlikon guns (7 x 1 or 6 x 2)
10 × 21 in (533 mm) torpedo tubes (2 × 5)
T10
Ministro Portales (CL)
Originally USS Charles S. Sperry "Allan M Summer Class" (US) Armament:
6 × 5 in (130 mm)/38 guns (3 x 2) [4 sec reload]
12 × 1.6 in (40 mm) Bofors guns (2 x 4 and 2 x 2)
10 ×  0.79 in (20 mm) Oerlikon guns (10 x 1)
10 × 21 in (533 mm) torpedo tubes (2 x 5) or Quetzalcoatl (MX)
Originally USS Vogelgesang "Gearing Class" (US) Armament:
6 × 5 in (130 mm)/38 guns (3 x 2) [3 sec reload]
12 × 1.6 in (40 mm) Bofors guns (2 x 4 and 2 x 2)
10 × × 0.79 in (20 mm) Oerlikon guns (10 x 1)
10 × 21 in (533 mm) torpedo tubes (2 x 5)
European Ships sold to Pan America
T9 Garcia y Garcia (PE)
Originally HNLMS Holland "Holland Class" (NL) Armament:
4 x 4.7 in (120 mm) Bofors guns (2×2)
1 x 1.6 in (40 mm) Bofors AA gun (1 x 1) More can be added
"Anti Submarine Mortars"

Note: No Torpedo
T10 Gálvez (PE)
Originally HNLMS Groningen "Friesland Class" (NL) Armament:
4 x 4.7 in (120 mm) Bofors guns (2 × 2)
6 x 1.6 in (40 mm) Bofors AA guns (6 × 1)
"Anti Submarine Mortars"

Note: No Torpedo and T10 Siete de Agosto / Veinte de Julio (CO)
Modified "Halland Class" (SE) Built for Colombian Navy Armament:
6 × 4.7 in (120 mm) Bofors guns (3 × 2)
4 × 1.6 in (40 mm) Bofors AA guns (4 × 1)
4 × 21.0 in (533 mm) torpedo tubes (1 × 4)
"Anti-Submarine Mortars"   All Armaments are only stock, WG can edit or custom them.   Foot Note:
(BR) = Brazil            (CO) = Colombia        (US) = USA             (EE) = Estonia
(AR) = Argentina    (VE) = Venezuela        (UK) = UK               (ES) = Spain / Espania
(CL) = Chile             (EC) = Ecuador           (RU) = Russia        (SE) = Sweden
(PE) = Peru                                                                                    (NL) = Netherlands
(MX) = Mexico                                         I hope that you like this suggestion. 🙂