Changing the drop flag time is fun too. Make it long like 180 and hide the flag with drop flag cmd and return for it or make it short like 20 and when you get shot with the flag it automatically returns.
here near bottom of cfg
holdable_teleporter: 60;
holdable_medkit: 60;

// special case, this is the return time when dropped
// unfair? no, we use max(redflag, blueflag)
team_CTF_redflag: 20;
team_CTF_blueflag: 20;
}

Amount {
item_armor_shard: 20;
item_armor_combat: 100;
item_armor_body: 200;
item_health_small: 50;
item_health: 100;
item_health_large: 200;
item_health_mega: 420;

item_quad: 19;
item_enviro: 9;
item_haste: 58;
item_invis: 17;
item_regen: 16;
item_flight: 29;

weapon_machinegun: 40;
weapon_shotgun: 10;
weapon_grenadelauncher: 10;
weapon_rocketlauncher: 10;
weapon_lightning: 100;
weapon_railgun: 10;
weapon_plasmagun: 50;
weapon_bfg: 20;

ammo_bullets: 50;
ammo_shells: 10;
ammo_grenades: 5;
ammo_rockets: 5;
ammo_lightning: 60;
ammo_slugs: 10;
ammo_cells: 30;
ammo_bfg: 15;
}
}