Counter Proposal:
1. Anti-Submarine Warfare - Your Cruisers prevent enemy subs from submerging or moving through them at a 1:1 ratio
2. War Bonds - During your collect income phase, collect an additional number of IPCs equal to 10% of your National Production Chart level, rounded to the nearest whole number.
3. Advanced Aviation - In combat, fighters hit on a roll of 3 or less.
4. Radio Communications - During combats where friendly forces are also in the contested zone, roll a die. That many friendly artillery may be used to boost your attacking forces, but may not participate in combat.
5. Increased Production - Tank and Fighter costs are reduced by 1 IPC.
6. Improved Shipyards - Naval units cost 1 IPC less.
7. Chemical Warfare - In one attack this turn, roll a die: 1-4 that many infantry do not roll defensively; 5-6: No effect. If the defender also has the Chemical Warfare Breakthrough he halves the number of infantry so immobilized, rounded down.
8. Bombing - Fighters within 2 spaces of an enemy capital may perform a bombing raid instead of engaging in combat. Each fighter in the raid rolls one die, deducting 1 IPC from the attacked power’s treasury for each 1 rolled up to a maximum of 3 IPCs. Surviving fighters return to the same territory they launched the bombing raid from.
9. Battle Cruisers - Cruisers may perform offshore bombardment at 3.
10. Heavy Artillery - Your artillery can support 2 infantry instead of one.
11. AA Guns - Artillery may target fighters before combat begins, firing at 1. Artillery used against aircraft may not fire during subsequent combat. A nation with AA Gun technology may use it against fighters in a bombing raid, provided they have artillery units present in the capital.
12. Naval Aviation - Fighters in territories adjacent to a sea zone in which naval combat will occur may participate in naval combat in the same manner as they do in land combat, but may not be hit by submarines. Surviving fighters return to the same territory they joined the battle from.
Yes, War Bonds would be a sought after tech, but since all the industrialized WWI belligerents issued them, everyone should want them. Making it fixed reduces uncertainty and prevents windfalls like the Ottomans getting 6 extra IPCs out of nowhere. It does add an extra spur to keep as many territories as possible contested.
Remember, IPCs are not just money. They represent the total resources of a nation and are the only way to represent morale without a morale chart, that’s why bombing takes away IPCs, but only 3 max. Tactical bombing is represented by Advanced Aviation.
Edited to fix a spelling error.