More destructive Falklands Battle of 1914:
Pod: 8 December 1914: As Scharnhorst sinks into the ocean, two salvoes of torpedoes sink HMS Invincible. Scharnhorst, already in a sinking condition, is finished off by HMS Carnarvon. Gneisenau, upon running out of ammunition, sinks HMS Inflexible with torpedoes, but is caught without ammunition and sunk by HMS Carnarvon too. A shell from Leipzig sinks the HMS Kent with a magazine explosion and Leipzig and Nurnberg sink HMS Glasgow and HMS Cornwall for the loss of Leipzig. During the battle, 2 out of 3 German supply ships are sunk with the last supply ship interned in Argentina. The decision is made by Nurnberg and Dresden to resume battle on 12 December 1914 with Dresden crippled before sinking HMS Canopus with torpedoes. HMS Carnarvon and HMS Bristol are sunk by torpedoes and gunfire from Nurnberg before Nurnberg was sunk by HMS Macedonia (an auxiliary cruiser), with Nurnberg out of ammunition and torpedoes after sinking 2 British cruisers. The last cruiser, Dresden, is scuttled after crippling damage, having managed to heavily damage HMS Macedonia that it was run aground and used as a British guardship for the Falklands, with HMS Macedonia being scrapped as a total loss post war in situ.
No strategic effects on WW1 at sea until Jutland, with attention paid by the British to deal with torpedo attacks and magazine fires from Jutland onwards. However, Von Spee and his squadron permanently taking down more British warships in their death throes makes Von Spee's reputation more heroic and renowned after his death in battle.
Even more destructive East Asia Squadron:
POD 1: On 6 November 1914, SMS Geier decides to break out and hits the Japanese cruiser Asama and the battleship Hizen with torpedoes before its destruction, sinking both Japanese ships in exchange for SMS Geier's destruction. Qingdao surrenders to the Japanese the following day.
POD 2: On 9 November 1914, SMS Emden blows up HMAS Sydney with gunfire before attacking an Australian troop convoy. The Australian troop convoy loses 5 troopships including the troopship Orvieto and the cruisers Melbourne and Ibuki sunk before the convoy is safe from Emden's reach. On 14 November 1914, the Emden sinks 2 auxiliary cruisers before being destroyed by HMS Hampshire after encountering the reorganized Australian troop convoy.
POD 3: Von Spee surprises the British battlecruisers in the Falkland Islands on 8 December 1914, sinking the battlecruisers Invincible and Inflexible and the armoured cruiser Carnavon at anchor. Later, the battle costs Germany the Scharnhorst and Leipzig while the British lose an additional 2 armoured cruisers, 2 light cruisers, the Falkland Islands and an armed merchant cruiser by 12 December 1914. On 14 December 1914, SMS Cormoran is interned at Guam.
POD 4: The German Scarborough Raid on 16 December 1914 succeeds in destroying an isolated battleship squadron of 6 British dreadnought battleships and 4 British battlecruisers in exchange for the Germans losing one battlecruiser and one dreadnought each. This results in Italian WW1 neutrality, no unrestricted submarine warfare, no sinking of the Lusitania and a CP victory in WW1 by 11 November 1918.
POD 5: After capturing the Falklands and departing the islands on 5 January 1915, Von Spee engages and sinks the HMS Princess Royal, HMS Donegal and HMS Lanchester sent after him on 31 January 1915 off the Panama Canal. Then, Dresden is detached north for commerce raiding and sinks the armoured cruisers Essex, Sussex and Hampshire (the latter 2 with torpedoes) on 31 March 1915 off Miami before severe battle damage forces it to sail to Norfolk, Virginia, where it sinks the Canadian protected cruiser Niobe and damages HMS Glory with a single torpedo before being sunk off Norfolk on 10 April 1915, with HMS Glory interned after the battle. On the previous day, SMS Prinz Ethel Friedrich manages to sink HMS Calgarian and damage HMS Caronia before sinking due to battle damage. HMS Caronia will sink off Boston due to battle damage on 13 April 1915.
POD 6: The German auxiliary ship Seydlitz, after entering the Falkland Islands with another German supply ship, is detached for commerce raiding off the Atlantic and Pacific coasts of South America. The Seydlitz will be sunk on 10 June 1915 off the Falkland Islands after the islands recapture in May 1915.
POD 7: The Gneisenau and Nurnberg enter the Pacific and on 1 March 1915, off Buenaventura, Colombia, encounter the Izumo, Australia and Newcastle. In the sunsequent battle, the Izumo, Australia and Newcastle are sunk in exchange for Gneisenau. Nurnberg will flee northwest to conduct commerce warfare against Canada. After sinking the Rainbow and a few other Canadian warships including the submarine HMCS CC1, the Nurnberg is torpedoed and sunk by HMCS CC2 on 15 June 1915. In the aftermath of the battle, the Germans' attempt to return home using the SS Saxonia results in HMCS CC2 being rammed and sunk and SS Saxonia being forced to intern in Seattle over the action of 22 June 1915.
POD 8: The destruction of SMS Prinz Ethel Friedrich triggers a breakout by German merchant ships on 10 May 1915, leading to the Battle of Jutland on 17-18 May 1915, resulting in the destruction of 19 British dreadnoughts, 2 British Lord Nelson-class battleships and all remaining British battlecruisers in exchange for 12 German dreadnoughts and 3 German battlecruisers, laying the path for a WW1 CP victory when combined with the destruction of 4 Russian dreadnoughts for a German dreadnought off the Gulf of Riga on 10 November 1915, the destruction of 2 British battlecruisers and 7 British battleships in exchange for the loss of 2 German battleships and 2 German battlecruisers at the 2nd Battle of Jutland on 31 July to 1 August 1916 together with most British and German pre-dreadnoughts, the loss of a German fast battleship (ex-Greek Salamis) and the battleship Konig in exchange for the remaining British battlecruisers and otl R class battleships on 29-30 January 1917 during the North Sea Battle, the loss of 2 Bayern class battleships in exchange for all French dreadnoughts and 2 additional R class battleships on 27 December 1917 during the Stavenger Battle, 5 days after a ceasefire on the Eastern Front, the loss of the 4 new Admiral class battlecruisers and all the remaining British pre-dreadnoughts in exchange for 2 Mackensen class battlecruisers, most German pre-dreadnoughts still afloat and all the remaining German coastal defence ships during the Channel Battle of 23-24 April 1918 and the post-armistice with France on 20 October 1918 sortie which sees the loss of Britain's last dreadnought (otl ex-Chilean HMS Eagle) and British aircraft carriers in exchange for a German aircraft carrier and a Bayern-class battleship on 8-9 November 1918 off Dogger Bank, contributing to the Armistice of 11 November 1918 and a CP victory in WW1.
In addition, SMS Kronprinz Wilhelm ends up being sunk by 2 British on 28 March 1915 with the SS Macedonia recaptured the next day without aiding the former auxiliary cruiser. HMS Carmania and SMS Vineta will be mutually destroyed off the Cape Verde Islands on 27-28 April 1915, aided by HMS Liverpool after destroying SMS Kronprinz Wilhelm.
Additional pod: Also, the Konigsberg will mutually destroy itself with 3 British cruisers on 10 November 1914. Some evacuated guns of the Konigsberg will be used to arm Tabora as an auxiliary cruiser, resulting in Tabora and HMS Kilsfaun Castle being sunk on 30 December 1914 and HMS Hyacinth, HMS Goliath and HMS Fox being left to blockade German East Africa. The last German auxiliary cruiser, SMS FeldMarschall, armed using the guns of the scuttled SMS Mowe, will be sunk on 11 July 1915 by monitors HMS Severn and HMS Mersey. By April 1916, German East Africa will be the only German colony still under German control outside of Europe until WW1's end.