diff --git a/src/battle.c b/src/battle.c
index 835917e62..a0e03f1f9 100644
--- a/src/battle.c
+++ b/src/battle.c
@@ -104,8 +104,6 @@ const troop no_troop = { 0, 0 };
 #define LOOT_KEEPLOOT      (1<<4)
 
 #define DAMAGE_CRITICAL      (1<<0)
-#define DAMAGE_MELEE_BONUS   (1<<1)
-#define DAMAGE_MISSILE_BONUS (1<<2)   /* deprecated */
 #define DAMAGE_SKILL_BONUS   (1<<4)
 
 static int max_turns;
@@ -117,7 +115,7 @@ static int flee_chance_skill_bonus;
 static int skill_formula;
 static int rule_cavalry_skill;
 static int rule_population_damage;
-static int rule_hero_speed;
+static unsigned char rule_hero_speed;
 static bool rule_anon_battle;
 static bool rule_igjarjuk_curse;
 static int rule_goblin_bonus;
@@ -139,7 +137,7 @@ static void init_rules(void)
     rule_nat_armor = config_get_int("rules.combat.nat_armor", 0);
     rule_tactics_formula = config_get_int("rules.tactics.formula", 0);
     rule_goblin_bonus = config_get_int("rules.combat.goblinbonus", 10);
-    rule_hero_speed = config_get_int("rules.combat.herospeed", 10);
+    rule_hero_speed = (unsigned char)config_get_int("rules.combat.herospeed", 10);
     rule_population_damage = config_get_int("rules.combat.populationdamage", 20);
     rule_anon_battle = config_get_int("rules.stealth.anon_battle", 1) != 0;
     rule_igjarjuk_curse = config_get_int("rules.combat.igjarjuk_curse", 0) != 0;
@@ -157,12 +155,6 @@ static void init_rules(void)
     if (config_get_int("rules.combat.critical", 1)) {
         rule_damage |= DAMAGE_CRITICAL;
     }
-    if (config_get_int("rules.combat.melee_bonus", 1)) {
-        rule_damage |= DAMAGE_MELEE_BONUS;
-    }
-    if (config_get_int("rules.combat.missile_bonus", 1)) { /* deprecated */
-        rule_damage |= DAMAGE_MISSILE_BONUS;
-    }
     if (config_get_int("rules.combat.skill_bonus", 1)) {
         rule_damage |= DAMAGE_SKILL_BONUS;
     }
@@ -1304,9 +1296,7 @@ terminate(troop dt, troop at, int type, const char *damage_formula, bool missile
 
         if (awtype == NULL || !fval(awtype, WTF_MISSILE)) {
             /* melee bonus */
-            if (rule_damage & DAMAGE_MELEE_BONUS) {
-                damage += af->person[at.index].damage;
-            }
+            damage += af->person[at.index].damage;
         }
 
         /* Skilldifferenzbonus */
@@ -3158,7 +3148,7 @@ fighter *make_fighter(battle * b, unit * u, side * s1, bool attack)
             fig->person[i].hp++;
 
         if (i < speeded)
-            fig->person[i].speed = speed;
+            fig->person[i].speed = (unsigned char) speed;
         else
             fig->person[i].speed = 1;
 
diff --git a/src/battle.h b/src/battle.h
index 0ce76bfea..83bcaf09a 100644
--- a/src/battle.h
+++ b/src/battle.h
@@ -81,9 +81,9 @@ extern "C" {
         int nsides;
         struct selist *meffects;
         int max_tactics;
-        int turn;
+        unsigned char turn;
+        signed char keeploot; /* keep (50 + keeploot) percent of items as loot */
         bool has_tactics_turn;
-        int keeploot;
         bool reelarrow;
         int alive;
         struct {
@@ -153,13 +153,13 @@ extern "C" {
         int catmsg;                 /* Merkt sich, ob Katapultmessage schon generiert. */
         struct person {
             int hp;                   /* Trefferpunkte der Personen */
-            int attack;
-            int defense;
-            int damage;
             int flags;
-            int speed;
-            int reload;
-            int last_action;
+            int attack;  /* weapon skill bonus for attacker */
+            int defense; /* weapon skill bonus for defender */
+            char damage;  /* bonus damage for melee attacks (e.g. troll belt) */
+            unsigned char speed;
+            unsigned char reload;
+            unsigned char last_action;
             struct weapon *missile;   /* missile weapon */
             struct weapon *melee;     /* melee weapon */
         } *person;
diff --git a/src/exparse.c b/src/exparse.c
index 4160b32ba..a9c21b025 100644
--- a/src/exparse.c
+++ b/src/exparse.c
@@ -280,7 +280,7 @@ static void handle_weapon(parseinfo *pi, const XML_Char *el, const XML_Char **at
             wtype->defmod = xml_int(attr[i + 1]);
         }
         else if (xml_strequal(attr[i], "reload")) {
-            wtype->reload = xml_int(attr[i + 1]);
+            wtype->reload = (unsigned char) xml_int(attr[i + 1]);
         }
         else if (xml_strequal(attr[i], "skill")) {
             wtype->skill = findskill(attr[i + 1]);
diff --git a/src/kernel/item.c b/src/kernel/item.c
index 1533d65bc..0d2764412 100644
--- a/src/kernel/item.c
+++ b/src/kernel/item.c
@@ -260,7 +260,7 @@ luxury_type *new_luxurytype(item_type * itype, int price)
 
 weapon_type *new_weapontype(item_type * itype,
     int wflags, variant magres, const char *damage[], int offmod, int defmod,
-    int reload, skill_t sk)
+    unsigned char reload, skill_t sk)
 {
     weapon_type *wtype;
 
diff --git a/src/kernel/item.h b/src/kernel/item.h
index 0b90b7b1e..46b27505f 100644
--- a/src/kernel/item.h
+++ b/src/kernel/item.h
@@ -169,7 +169,7 @@ extern "C" {
         int offmod;
         int defmod;
         variant magres;
-        int reload;                 /* time to reload this weapon */
+        unsigned char reload;                 /* time to reload this weapon */
         weapon_mod *modifiers;
         /* --- functions --- */
         bool(*attack) (const struct troop *, const struct weapon_type *,
@@ -208,7 +208,7 @@ extern "C" {
     item_type *it_get_or_create(resource_type *rtype);
     luxury_type *new_luxurytype(item_type * itype, int price);
     weapon_type *new_weapontype(item_type * itype, int wflags,
-        variant magres, const char *damage[], int offmod, int defmod, int reload,
+        variant magres, const char *damage[], int offmod, int defmod, unsigned char reload,
         skill_t sk);
     void free_wtype(struct weapon_type *wtype);
     armor_type *new_armortype(item_type * itype, double penalty,
diff --git a/src/spells/combatspells.c b/src/spells/combatspells.c
index f4b8b6954..dea37345b 100644
--- a/src/spells/combatspells.c
+++ b/src/spells/combatspells.c
@@ -1378,7 +1378,7 @@ int sp_keeploot(struct castorder * co)
     message_all(b, m);
     msg_release(m);
 
-    b->keeploot = (int)fmax(25, b->keeploot + 5 * power);
+    b->keeploot = (signed char) fmax(25, b->keeploot + 5 * power);
 
     return level;
 }