Do you have any questions about modifying the game? What will you need to do what you want to? What are the best techniques? Discuss Modifications, Map Making, AI scripting and Random Map Scripting here.
Forums for decision-making on issues where a consensus can't be reached or isn't sufficient. The committees are chosen from among the official team members, but to ensure an open and transparent decision process it's publically viewable.
I usually use grep to find things if I can't use an IDE. I recommend that you look around for a good IDE though, they make navigating code bases so much easier.
For C++, I use QTCreator. It's an IDE that doesn't use much system resources. It has become quite unstable for me with the upgrade to Ubuntu 16.04 though, so you might try another IDE instead if you should have the same problem on your machine.
As a general editor, I like Geany.
Attached here is a patch with few proposed changes which include:
Cavalry Spear attack rate reduced from 3,5 sec to 3 sec
Cavalry Spear has now a 1,25x bonus against cavalry units
Cavalry Spear Walk Speed reduced from 22 to 20
Cavalry Sword Wak Speed increased from 20 to 21
Infantry Pikemen Walk Speed increased from 6 to 7
Infantry Pikemen hack and pierce damage increased by 0.5
Champion Infantry Pikemen hack and pierce damage increased by 1
Champion Infantry Pikemen Walk Speed increased from 7 to 10
Wardog hack damage increased from 7 to 10
Chamion Infantry Spearman attack rate increased from 0.75 to 0.90 sec
War Elephant Health Points reduced from 750 to 700
Mauryan Archer Elephant Health Points increased by 100
Mauryan Archer Elephant Cost Increased by 50 food (now it costs 150f 50w)
Hero Infantry Spearman attack rate fixed to fit the new attack rate
Hero Spearman Cavalry fixed to fit the new changes
Hero Sword Cavalry attack rate reduced from 1 sec to 0,75 sec
Whut? Is it present in the replay too? Can you upload one? (Main menu -> Tools & Options -> Replays -> clicking on delete show the filepath).
(Must be something with your system I believe though as noone else has that issue)
When I play a random skirmish for like an hour or so. The game suddenly speeds up to dubble speed. after that all tooltips are gone and the game continues to run fast. Some time after that a lag spike hits the game, before running faster than normal. This bug was reproduceable and seems to appear in every longer game.