Suggested techs for UK.
Buildings:
HQ-basic building, creates engineer and general, stores resources, makes upgrades, a machine gun tower can be mounted.
training camp-creates lee enfield rifleman, vickers machine gunner, lewis machine gunner, flame thrower team, sniper, and upgrades infantry.
Hospital-creates and upgrades medic
Munition factory-upgrades units attacks.
ammo dump-required for artillery.
artillery factory-creates and upgrades howitzer, antiaircraft gun, field piece, trench mortar, and gas cannon required for tank factory.
stable-creates and upgrades lancers.
Royal Aircraft Factory-creates and upgrades the following aircraft dh2, dh9, b2c, Handley page 0/400, sopwith pup, and se 5.
Tank factory-creates and upgrades the following tanks mk1, little willie?, whippet, mk4 male and female.
Dock-builds and upgrades the following ships, super dreadnought, battle cruiser, light cruiser, destroyer, submarine, aircraft carrier, seaplane tender, supply ship.I can find specific ship class names later.
Supply base-similar to farm produces supplies.
Defense buildings-trench, lookout tower, dug out, pillbox, plank bridge.
Units:
engineer-basic worker, collects resources builds and repairs buildings and ships-creates the following buildings, HQ, training camp, Hospital, munition factory,ammo dump, artillery factory, stable, Royal Aircraft Factory,Tank Factory, Dock, supply base, promotes to field engineer.
Field engineer-creates all defense buildings, and builds buildings faster, cannot collect resources.
lee-enfield rifleman-best standard infantry in game, the brits had the best riflemen in the world at the time can fight aircraft.
vickers machine gun-heavy machine gun, must be entrenched to fire, can be taken apart to move can fight aircraft.
lewis machine gun-light machine gun, can be fired from hip or entrenched and fired from a tripod can fight aircraft.
field piece-standard medium range artillery can be useful as a direct fire support weapon must be taken apart to move, I'll find out the specific type used later.
Howitzer-long range artillery, superior to field piece.
trench mortar-light portable medium range weapon.
flame thrower-short range heavy damage dealing weapon beats all ground units if close enough.
field medic-heals infantry.
grenadier-grenade throwing infantryman.
lancer-cavalry armed with a bamboo lance or sword and a carbine.
specialist lee enfield sniper-long range infantry unit, good against infantry and can shoot against aircraft.
gas cannon-long range poison gas throwing weapon.
anti aircraft gun-anti aircraft gun can shoot at ground targets.
motorcycle-fast scout unit with low armor and attack.
Lancaster armored car-well armored and machine gun armed armored car good versus infantry and for scouting can shoot at aircraft.
little willie landship-unarmed tank with ability to fix other tanks, can be upgraded to have a hotchkiss machine gun.
tank mk1-basic machine gun armed tank vulnerable against cannon, anti tank guns, flamethrowers and aircraft, useful against infantry slowwww.
whippet-fast mg(machinegun) armed tank late game replacement for cavalry and superior to mk1 tank.
male mk4 tank-6pounder cannon armed tank, near immune to anti tank guns and aircraft with machine guns but still vulnerable against field guns and flamethrowers, can fight other tanks, slowwwww.
female mk4 tank-same as male mk4 tank but armed with mgs, can't really fight other tanks.
b2c-slow vulnerable, light bomb armed scout plane.
dh2-pusher fighter, basic air combat unit.*
dh9-advanced air recon unit, can fight air to air, better bombs and speed.
Handley page 0/400-medium bomber, can fight air to air, heavy bomb attack and high hp.
sopwith pup-mid game fighter, faster and has better hp then dh2, good unit.*
Sopwith camel-best naval air to air fighter even better then sopwith pup.*
observation balloon-large sight no defense or attack, weak look out unit.
*can be upgraded with strut mounted rockets.
se5-best ground fighter, faster then sopwith camel but lower attack*
short 184-built by seaplane tender uses torpedo or bombs, and depth charges against submarines, good against ground or sea, can fight air to air with mg.
sopwith cuckoo-torpedo bomber and general bomber, cannot fight air to air.
seaplane tender-builds and upgrades short 184.
aircraft carrier-builds and upgrades sopwith camel, and cuckoo.
super dreadnought-best most expensive warship, beats all, has anti air cannons for defense. can shell land defenses.
supply ship-repairs ships no attack.
battle cruiser-slightly weaker then super dreadnought but with same capabilities and faster.
light cruiser-even weaker and faster then battle cruiser great for scouting and fighting submarines no anti air.
destroyer-can shell land units with cannon, has depth charges for submarines no anti air, can attack naval ships with torpedos.
submarine-great for heavy ships and light ships, vulnerable to destroyers and aircraft, must surface to attack.
Sorry if it sounds really ambitious but I love war history, if this doesn't turn out really good I'd be depressed